{"title":"Spring and Retainer Kits","description":"\u003cp\u003e\u003c\/p\u003e","products":[{"product_id":"supertech-spring-retainer-dual-valve-spring-kit-sprk-h1021d-honda-s2000-00-03","title":"Supertech Spring \/ Retainer \/ Dual Valve Spring Kit (SPRK-H1021D) - Honda S2000 00-03","description":"\u003cp\u003e\u003cstrong\u003eSupertech Spring \/ Retainer \/ Dual Valve Spring Kit (SPRK-H1021D) - Honda S2000 00-03\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eSprings Specifications:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 12px;\"\u003eOuter Spring: O.D. (30mm) \/ I.D. (21.8mm)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 12px;\"\u003eInner Spring: O.D. (21.3mm) \/ I.D. (15.5mm)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 12px;\"\u003ePressure: Seat 95@40.40 \/ Open 253@12\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 12px;\"\u003eMax Lift: 17.7mm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 12px;\"\u003eCoil Bind: 22.70mm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 12px;\"\u003eRate: 13.20mm (lbs\/mm)\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong style=\"font-size: 12px;\"\u003eEngine Valve Technology\u003c\/strong\u003e\u003c\/p\u003e\u003cp style=\"font-size: 12px;\"\u003eSupertech applies more than 30 years of experience in the development of each and every Supertech racing valve sold. Combine this experience with state of the art equipment such as ultrasonic tests, x-rays, laser measurement equipment, and applications like computerized Finite Element Analysis (FEA) and it is no wonder why Supertech has some of the best performance products on the market.\u003c\/p\u003e\u003cp\u003eSupertech also does extensive testing working very closely with many of today's top engine builders in order to continuously improve products. All of this is meant to insure Supertech's industry leading reputation for high flow rates, durability and uncompromising quality.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHigher Flow Rates\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003e\u003c\/strong\u003eSupertech valves are not finished from generic blanks rather they are specifically designed for each and every application. Supertech works relentlessly, testing and researching every aspect trying to improve the air flow of their designs.\u003c\/p\u003e\u003cp\u003e\u003cstrong style=\"font-size: 12px;\"\u003eDurability\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eWith every valve design, Supertech strives to maximize durability through higher fatigue resistance and tensile strength. Each valve tip is hardened beyond 52HRc.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eStem Super finishing\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eIn 2006, Supertech introduced the stem Superfinishing as a standard addition to all valves and provided it at no additional cost. When Superfinish is combined with our Black Nitrided valve it reduces the surface roughness to 1\/3 of a chrome coated valve. The end result... unsurpassed performance and durability.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eStrict Dimensional Tolerances\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eIt's unlikely you will find any of competitor valves with stricter dimensional tolerances than Supertech valves. Combine that with finished seats with equally strict run out tolerances and you won’t find a better sealing, better performing and easier to install solution anywhere!\u003c\/p\u003e","brand":"Supertech","offers":[{"title":"Default Title","offer_id":35089160798362,"sku":"ST-SPRK-H1021D","price":566.32,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0401\/5308\/8154\/products\/sprk-h1021d.jpg?v=1594265877"},{"product_id":"supertech-spring-retainer-kits-honda-k24z7-sprk-h1005d-z7","title":"Supertech Spring \/ Retainer Kits Honda K24Z7 SPRK-H1005D-Z7","description":"\u003cp\u003e\u003cstrong\u003eSupertech Spring \/ Retainer Kits Honda K24Z7 SPRK-H1005D-Z7\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eValve springs are made with premium Superclean Chrome Silicon Vanadium Steel alloy for higher performance \u0026amp; durability at high rpms and better memory.\u003c\/p\u003e\u003cp\u003eComputer designed to ensure that wire stress levels do not overpass the limits of stress defined in the diagrams of fatigue for long durability under extreme conditions.\u003c\/p\u003e\u003cp\u003eComputer software also allows us to make sure that the harmonics arewell under control.\u003c\/p\u003e\u003cp\u003eThe Retainers are manufactured with high quality military certified Titanium alloy, CNC machined for a tight fit that will ensure a long durability.\u003c\/p\u003e","brand":"Supertech","offers":[{"title":"Default Title","offer_id":35089167483034,"sku":"ST-SPRK-H100DR-Z7","price":690.02,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0401\/5308\/8154\/products\/sprk-h1000d-z7_2.jpg?v=1594265907"},{"product_id":"supertech-honda-single-valve-spring-retainer-kits-sprk-f22ab","title":"Supertech Honda Single Valve Spring \u0026 Retainer Kits SPRK-F22AB","description":"\u003cp\u003e\u003cstrong\u003eSupertech Honda Single Valve Spring \u0026amp; Retainer Kits SPRK-F22AB\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eSupertech Spring \/ Retainer kits are precision matched sets for a complete valvetrain overhaul. Developed for the performance enthusiast that wants the best the industry has to offer, Supertech Spring \/ Retainer kits are second to none in terms of performance, quality and value.\u003c\/p\u003e","brand":"Supertech","offers":[{"title":"Default Title","offer_id":35089174888602,"sku":"ST-SPRK-F22AB","price":486.59,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0401\/5308\/8154\/products\/sprk-h1000d-z7_5.jpg?v=1594265930"},{"product_id":"supertech-performance-sprk-h100dr-bm-dual-valve-spring-67lbs-at-35-70mm-24-spr-h100dr-bm-24-ret-k20a-t2-24-seat-bm50","title":"Supertech Performance SPRK-H100DR\/BM Dual valve spring 67lbs @ 35.70mm (24)SPR-H100DR\/BM(24)+RET-K20A\/T2+(24)SEAT-BM50","description":"\u003cp\u003e\u003cstrong\u003eSupertech Performance SPRK-H100DR\/BM Dual valve spring 67lbs @ 35.70mm (24)SPR-H100DR\/BM(24)+RET-K20A\/T2+(24)SEAT-BM50\u003c\/strong\u003e\u003c\/p\u003e","brand":"Supertech","offers":[{"title":"Default Title","offer_id":35089452302490,"sku":"ST-SPRK-H100DR-BM","price":882.47,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0401\/5308\/8154\/products\/dual-spring-kits-cat_3.jpg?v=1594266978"},{"product_id":"supertech-performance-sprk-h1000d-nsx-dual-valve-spring-67at-36-4mm-24-spr-h1000d-nsx-24-ret-k20a2-t2-24-seat-h1020d","title":"Supertech Performance SPRK-H1000D\/NSX Dual Valve spring 67@ 36.4mm (24)SPR-H1000D\/NSX+ (24)RET-K20A2\/T2+(24)SEAT-H1020D","description":"\u003cp\u003e\u003cstrong\u003eSupertech Performance SPRK-H1000D\/NSX Dual Valve spring 67@ 36.4mm (24)SPR-H1000D\/NSX+ (24)RET-K20A2\/T2+(24)SEAT-H1020D\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 12px;\"\u003eOuter Spring -- 29.70mm OD -- 21.90mm ID\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 12px;\"\u003eInner Spring -- 20.50mm -- 15.50mm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 12px;\"\u003e67 lbs seat pressure -- 67 lbs @ 36.40mm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 12px;\"\u003e15.70mm Max Net Lift\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 12px;\"\u003e20.70mm Coil Bind\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 12px;\"\u003e11.50 lbs\/mm Rate\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Supertech","offers":[{"title":"Default Title","offer_id":35089452859546,"sku":"ST-SPRK-H1000D-NSX","price":820.59,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0401\/5308\/8154\/products\/dual-spring-kits-cat_4.jpg?v=1594266980"},{"product_id":"supertech-performance-sprk-h1005d-nsx-dual-valve-spring-80at-36-4mm-24-spr-h1000d-nsx-24-ret-k20a2-t2-24-seat-h1020d","title":"Supertech Performance SPRK-H1005D\/NSX Dual Valve spring 80@ 36.4mm (24)SPR-H1000D\/NSX+ (24)RET-K20A2\/T2+(24)SEAT-H1020D","description":"\u003cp\u003e\u003cstrong\u003eSupertech Performance SPRK-H1005D\/NSX Dual Valve spring 80@ 36.4mm (24)SPR-H1000D\/NSX+ (24)RET-K20A2\/T2+(24)SEAT-H1020D\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 12px;\"\u003eOuter Spring -- 29.65mm OD -- 21.85mm ID\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 12px;\"\u003eInner Spring -- 20.50mm -- 15.50mm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 12px;\"\u003e80 lbs seat pressure -- 80 lbs @ 36.40mm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 12px;\"\u003e14.90mm Max Net Lift\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 12px;\"\u003e21.50mm Coil Bind\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 12px;\"\u003e11.50 lbs\/mm Rate\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Supertech","offers":[{"title":"Default Title","offer_id":35089454432410,"sku":"ST-SPRK-H1005D-NSX","price":820.59,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0401\/5308\/8154\/products\/dual-spring-kits-cat_5.jpg?v=1594266988"},{"product_id":"supertech-performance-sprk-mm16d2-1-6lts-dual-spring-kit-70lbsat33-50mm-16-spr-ts1015-mi-16-ret-ts60-ma2-16-seat-ts-ma18e","title":"Supertech Performance SPRK-MM16D2 1.6lts Dual Spring kit \/ 70lbs@33.50mm(16) SPR-TS1015\/MI + (16)RET-TS60\/MA2 + (16)SEAT-TS\/MA18E.","description":"\u003cp\u003e\u003cstrong\u003eSupertech Performance SPRK-MM16D2 1.6lts Dual Spring kit \/ 70lbs@33.50mm(16) SPR-TS1015\/MI + (16)RET-TS60\/MA2 + (16)SEAT-TS\/MA18E.\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eSupertech valve springs are computer designed to ensure smooth harmonics under high RPM and load. The stress levels are kept under control and fatigue is reduced for long durability under extreme conditions. These springs are made of premium Superclean Chrome Silicon Vanadium steel alloy, which is a tough alloy that was designed for higher performance and durability at high RPM's and memory retention.\u003c\/p\u003e","brand":"Supertech","offers":[{"title":"Default Title","offer_id":35089454825626,"sku":"ST-SPRK-MM16D2","price":701.37,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0401\/5308\/8154\/products\/dual-spring-kits-cat_1_1.jpg?v=1594266990"},{"product_id":"supertech-performance-sprk-mm16s-1-6lts-single-spring-kit-58lbsat34-10mm-16-spr-ts1015-si-16-ret-ts60-ma2-16-seat-ts-ma18i","title":"Supertech Performance SPRK-MM16S  1.6lts Single Spring kit \/ 58lbs@34.10mm (16) SPR-TS1015\/Si + (16)RET-TS60\/MA2 + (16)SEAT-TS\/MA18I","description":"\u003cp\u003e\u003cstrong\u003eSupertech Performance SPRK-MM16S 1.6lts Single Spring kit \/ 58lbs@34.10mm (16) SPR-TS1015\/Si + (16)RET-TS60\/MA2 + (16)SEAT-TS\/MA18I\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eSupertech valve springs are computer designed to ensure smooth harmonics under high RPM and load. The stress levels are kept under control and fatigue is reduced for long durability under extreme conditions. These springs are made of premium Superclean Chrome Silicon Vanadium steel alloy, which is a tough alloy that was designed for higher performance and durability at high RPM's and memory retention.\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 12px;\"\u003eO.D.: 27.50mm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 12px;\"\u003eI.D.: 20.00mm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 12px;\"\u003eSeat: 58 @ 34.10 (lbs@mm)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 12px;\"\u003eOpen (lift): 157 @ 10.5 (lbs@mm)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 12px;\"\u003eMax net lift: 13.40mm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 12px;\"\u003eCoil bind: 20.70mm\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cspan style=\"font-size: 12px;\"\u003eRate: 9.40 lbs\/mm\u003c\/span\u003e\u003cspan style=\"font-size: 12px;\"\u003eRetainer P\/N: RET-TS60\/MA2 + SEAT-TS\/MA18I + OEM seat\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e This is for a complete set of single intake and exhaust valve springs. Retainers and spring seats are included if they are part of the kit.\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"Supertech","offers":[{"title":"Default Title","offer_id":35089456070810,"sku":"ST-SPRK-MM16S","price":628.24,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0401\/5308\/8154\/products\/dual-spring-kits-cat_1_2.jpg?v=1594266992"},{"product_id":"supertech-performance-sprk-mm18s-1-8lts-single-spring-kit-56lbsat34-20mm-16-spr-ts1015-si-16-ret-ts60-ma2-16-seat-ts-ma18i","title":"Supertech Performance SPRK-MM18S 1.8lts Single Spring kit \/ 56lbs@34.20mm(16) SPR-TS1015\/Si + (16)RET-TS60\/MA2 + (16)SEAT-TS\/MA18I","description":"\u003cp\u003e\u003cstrong\u003eSupertech Performance SPRK-MM18S 1.8lts Single Spring kit \/ 56lbs@34.20mm(16) SPR-TS1015\/Si + (16)RET-TS60\/MA2 + (16)SEAT-TS\/MA18I\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eSupertech valve springs are computer designed to ensure smooth harmonics under high RPM and load. The stress levels are kept under control and fatigue is reduced for long durability under extreme conditions. These springs are made of premium Superclean Chrome Silicon Vanadium steel alloy, which is a tough alloy that was designed for higher performance and durability at high RPM's and memory retention.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 12px;\"\u003eO.D.: 27.50mm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 12px;\"\u003eI.D.: 20.00mm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 12px;\"\u003eSeat: 56 @ 34.20 (lbs@mm)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 12px;\"\u003eOpen (lift): 154 @ 10.5 (lbs@mm)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 12px;\"\u003eMax net lift: 13.50mm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 12px;\"\u003eCoil bind: 20.70mm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 12px;\"\u003eRate: 9.40 lbs\/mm\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eRetainer P\/N: RET-TS60\/MA2 + (16) SEAT-TS\/MA18I+OEM (use '97 + Cotters)\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e This is for a complete set of single intake and exhaust valve springs. Retainers and spring seats are included if they are part of the kit.\u003c\/p\u003e","brand":"Supertech","offers":[{"title":"Default Title","offer_id":35089456496794,"sku":"ST-SPRK-MM18S","price":628.24,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0401\/5308\/8154\/products\/dual-spring-kits-cat_1_3.jpg?v=1594266995"},{"product_id":"supertech-performance-sprk-1012-m18d-1-8lts-dual-spring-kit-63lbsat34-2mm-16-spr-ts1012-mi-16-ret-ts60-ma2-16-seat-ts-ma18i","title":"Supertech Performance SPRK-1012-M18D  1.8lts Dual Spring kit \/ 63lbs@34.2mm 16) SPR-TS1012\/MI + (16)RET-TS60\/MA2 + (16)SEAT-TS\/MA18I","description":"\u003cp\u003e\u003cstrong\u003eSupertech Performance SPRK-1012-M18D 1.8lts Dual Spring kit \/ 63lbs@34.2mm 16) SPR-TS1012\/MI + (16)RET-TS60\/MA2 + (16)SEAT-TS\/MA18I\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eSupertech valve springs are computer designed to ensure smooth harmonics under high RPM and load. The stress levels are kept under control and fatigue is reduced for long durability under extreme conditions. These springs are made of premium Superclean Chrome Silicon Vanadium steel alloy, which is a tough alloy that was designed for higher performance and durability at high RPM's and memory retention.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 12px;\"\u003eOuter Spring O.D.: 27.50mm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 12px;\"\u003eOuter Spring I.D.: 20.00mm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 12px;\"\u003eInner Spring O.D.: 20.00mm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 12px;\"\u003eInner Spring I.D.: 15.20mm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 12px;\"\u003eSeat: 63 @ 34.20 (lbs@mm)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 12px;\"\u003eOpen (lift): 164 @ 10.5 (lbs@mm)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 12px;\"\u003eMax net lift: 14.20mm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 12px;\"\u003eCoil bind: 20.00mm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 12px;\"\u003eRate: 9.60 lbs\/mm\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eRetainer P\/N: RET-TS60\/MA2 + (16) SEAT-TS\/MA18I+OEM (use '97 + Cotters)\u003c\/p\u003e\u003cp\u003e\u003cbr\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e This is for a complete set of dual intake and exhaust valve springs, \u0026amp; retainers and spring seats.\u003c\/p\u003e","brand":"Supertech","offers":[{"title":"Default Title","offer_id":35089458299034,"sku":"ST-SPRK-1012-M18D","price":602.45,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0401\/5308\/8154\/products\/dual-spring-kits-cat_1_4.jpg?v=1594266998"},{"product_id":"supertech-performance-sprk-mm18d-1-8lts-dual-spring-kit-74lbsat34-2mm-16-spr-ts1015-mi-16-ret-ts60-ma2-16-seat-ts-ma18i","title":"Supertech Performance SPRK-MM18D  1.8lts Dual Spring kit \/ 74lbs@34.2mm 16) SPR-TS1015\/MI + (16)RET-TS60\/MA2 + (16)SEAT-TS\/MA18I","description":"\u003cp\u003e\u003cstrong\u003eSupertech Performance SPRK-MM18D 1.8lts Dual Spring kit \/ 74lbs@34.2mm 16) SPR-TS1015\/MI + (16)RET-TS60\/MA2 + (16)SEAT-TS\/MA18I\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eSupertech valve springs are computer designed to ensure smooth harmonics under high RPM and load. The stress levels are kept under control and fatigue is reduced for long durability under extreme conditions. These springs are made of premium Superclean Chrome Silicon Vanadium steel alloy, which is a tough alloy that was designed for higher performance and durability at high RPM's and memory retention.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 12px;\"\u003eOuter Spring O.D.: 27.50mm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 12px;\"\u003eOuter Spring I.D.: 20.00mm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 12px;\"\u003eInner Spring O.D.: 20.00mm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 12px;\"\u003eInner Spring I.D.: 15.20mm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 12px;\"\u003eSeat: 74 @ 34.20 (lbs@mm)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 12px;\"\u003eOpen (lift): 177 @ 10.5 (lbs@mm)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 12px;\"\u003eMax net lift: 13.00mm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 12px;\"\u003eCoil bind: 20.70mm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 12px;\"\u003eRate: 12.10 lbs\/mm\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eRetainer P\/N: RET-TS60\/MA2 + (16) SEAT-TS\/MA18I+OEM (use '97 + Cotters)\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e This is for a complete set of dual intake and exhaust valve springs, \u0026amp; retainers and spring seats.\u003c\/p\u003e","brand":"Supertech","offers":[{"title":"Default Title","offer_id":35089458561178,"sku":"ST-SPRK-MM18D","price":701.37,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0401\/5308\/8154\/products\/dual-spring-kits-cat_1_5.jpg?v=1594267000"},{"product_id":"supertech-performance-sprk-ts1015-mc-dual-valve-springs-76at-34-80mm-spr-ts1015-mc-ret-ts60ma2-seat-mc1015d-oem-triple-groove","title":"Supertech Performance SPRK-TS1015\/MC Dual Valve Springs 76@ 34.80mm SPR-TS1015\/MC + RET-TS60MA2 + SEAT-MC1015D + OEM  ( Triple Groove)","description":"\u003cp\u003e\u003cstrong\u003eSupertech Performance SPRK-TS1015\/MC Dual Valve Springs 76@ 34.80mm SPR-TS1015\/MC + RET-TS60MA2 + SEAT-MC1015D + OEM ( Triple Groove)\u003c\/strong\u003e\u003c\/p\u003e","brand":"Supertech","offers":[{"title":"Default Title","offer_id":35089462689946,"sku":"ST-SPRK-TS1015-MC","price":589.28,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0401\/5308\/8154\/products\/dual-spring-kits-cat_1_9.jpg?v=1594267014"},{"product_id":"supertech-performance-sprk-m1005d-dual-valve-springs-80-at-39-6-spr-m1007d-ret-m65-t1-seat-m1007-valve-seal-vs-h6-6","title":"Supertech Performance SPRK-M1005D Dual Valve Springs 80 @ 39.6  SPR-M1007D + RET-M65\/T1 + SEAT-M1007 + Valve Seal VS-H6.6","description":"\u003cp\u003e\u003cstrong\u003eSupertech Performance SPRK-M1005D Dual Valve Springs 80 @ 39.6 SPR-M1007D + RET-M65\/T1 + SEAT-M1007 + Valve Seal VS-H6.6\u003c\/strong\u003e\u003c\/p\u003e","brand":"Supertech","offers":[{"title":"Default Title","offer_id":35089464131738,"sku":"ST-SPRK-M1005D","price":562.46,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0401\/5308\/8154\/products\/dual-spring-kits-cat_1_10.jpg?v=1594267016"},{"product_id":"supertech-performance-sprk-m1007be-1-behive-valve-spring-80lbs-at38-10mm-spr-m1007be-1-ret-m65-tbe-seat-m65be-1","title":"Supertech Performance SPRK-M1007BE-1 Behive Valve Spring 80lbs @38.10mm SPR-M1007BE-1 + RET-M65-TBE  + SEAT-M65BE-1","description":"\u003cp\u003e\u003cstrong\u003eSupertech Performance SPRK-M1007BE-1 Behive Valve Spring 80lbs @38.10mm SPR-M1007BE-1 + RET-M65-TBE + SEAT-M65BE-1\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 12px;\"\u003eOuter Spring -- 28.00mm OD -- 18.80mm ID\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 12px;\"\u003eInner Spring -- 24.20mm OD -- 14.50mm ID\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 12px;\"\u003e80 lbs seat pressure -- 80 lbs @ 38.10mm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 12px;\"\u003e15.30mm Max Net Lift\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 12px;\"\u003e22.80mm Coil Bind\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 12px;\"\u003e12.70 lbs\/mm Rate\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Supertech","offers":[{"title":"Default Title","offer_id":35089464688794,"sku":"ST-SPRK-M1007BE-1","price":577.32,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0401\/5308\/8154\/products\/dual-spring-kits-cat_1_11.jpg?v=1594267019"},{"product_id":"supertech-performance-sprk-m1007be-2-behive-valve-spring-98lbs-at37-2mm-spr-m1007be-1-ret-m65-tbe-seat-m65be-2","title":"Supertech Performance SPRK-M1007BE-2 Behive Valve Spring 98lbs @37.2mm SPR-M1007BE-1 + RET-M65-TBE  + SEAT-M65BE-2","description":"\u003cp\u003e\u003cstrong\u003eSupertech Performance SPRK-M1007BE-2 Behive Valve Spring 98lbs @37.2mm SPR-M1007BE-1 + RET-M65-TBE + SEAT-M65BE-2\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 12px;\"\u003eOuter Spring -- 28.00mm OD -- 18.80mm ID\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 12px;\"\u003eInner Spring -- 24.20mm OD -- 14.50mm ID\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 12px;\"\u003e95 lbs seat pressure -- 95 lbs @ 36.80mm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 12px;\"\u003e14.00mm Max Net Lift\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 12px;\"\u003e22.80mm Coil Bind\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 12px;\"\u003e12.70 lbs\/mm Rate\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Supertech","offers":[{"title":"Default Title","offer_id":35089465507994,"sku":"ST-SPRK-M1007BE-2","price":577.32,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0401\/5308\/8154\/products\/dual-spring-kits-cat_1_12.jpg?v=1594267021"},{"product_id":"supertech-performance-sprk-ts1015-ne-dual-valve-spring-84lbs-at-34-6-spr-ts1015-ne-ret-m60-t1-seat-ec1015","title":"Supertech Performance SPRK-TS1015\/NE Dual Valve Spring 84lbs @ 34.6 SPR-TS1015\/NE + RET-M60\/T1+ SEAT-EC1015","description":"\u003cp\u003e\u003cstrong\u003eSupertech Performance SPRK-TS1015\/NE Dual Valve Spring 84lbs @ 34.6 SPR-TS1015\/NE + RET-M60\/T1+ SEAT-EC1015\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 12px;\"\u003eOuter Spring -- 27.50mm OD -- 20.00mm ID\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 12px;\"\u003eInner Spring -- 20.00mm OD -- 15.20mm ID\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 12px;\"\u003e84 lbs seat pressure -- 84 lbs @ 34.60mm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 12px;\"\u003e13.90mm Max Net Lift\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 12px;\"\u003e20.70mm Coil Bind\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 12px;\"\u003e12.10 lbs\/mm Rate\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Supertech","offers":[{"title":"Default Title","offer_id":35089466359962,"sku":"ST-SPRK-TS1015-NE","price":588.31,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0401\/5308\/8154\/products\/dual-spring-kits-cat_1_13.jpg?v=1594267043"},{"product_id":"supertech-performance-sprk-h1000d-240-dual-valve-spring-96at-34-85mm-spr-h1000d-ret-h70-t1-seat-h-n240","title":"Supertech Performance SPRK-H1000D\/240 Dual Valve Spring 96@ 34.85mm SPR-H1000D + RET-H70\/T1 + SEAT-H\/N240","description":"\u003cp\u003e\u003cstrong\u003eSupertech Performance SPRK-H1000D\/240 Dual Valve Spring 96@ 34.85mm SPR-H1000D + RET-H70\/T1 + SEAT-H\/N240\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eSupertech valve springs are computer designed to ensure smooth harmonics under high RPM and load. The stress levels are kept under control and fatigue is reduced for long durability under extreme conditions. These springs are made of premium Superclean Chrome Silicon Vanadium steel alloy, which is a tough alloy that was designed for higher performance and durability at high RPM's and memory retention.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 12px;\"\u003eOuter Spring O.D.: 29.65mm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 12px;\"\u003eOuter Spring I.D.: 21.85mm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 12px;\"\u003eInner Spring O.D.: 20.50mm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 12px;\"\u003eInner Spring I.D.: 15.50mm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 12px;\"\u003eSeat: 96 @ 34.85 (lbs@mm)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 12px;\"\u003eOpen (lift): 240 @ 11.80 (lbs@mm)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 12px;\"\u003eMax net lift: 14.00mm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 12px;\"\u003eCoil bind: 20.70mm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 12px;\"\u003eRate: 12.80 lbs\/mm\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eRetainer P\/N: RET-H70\/T1 (16) + SEAT-H\/N240 (16)\u003c\/p\u003e\u003cp\u003e\u003cbr\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e This is for a complete set of dual intake and exhaust valve springs. Retainers and spring seats are included if they are part of the kit.\u003c\/p\u003e","brand":"Supertech","offers":[{"title":"Default Title","offer_id":35089466654874,"sku":"ST-SPRK-H1000D-240","price":547.09,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0401\/5308\/8154\/products\/dual-spring-kits-cat_1_14.jpg?v=1594267046"},{"product_id":"supertech-performance-sprk-h100dr-240-dual-valve-spring-84at-34-85mm-spr-h100dr-ret-h70-t1-seat-h-n240","title":"Supertech Performance SPRK-H100DR\/240 Dual Valve Spring 84@ 34.85mm SPR-H100DR + RET-H70\/T1 + SEAT-H\/N240","description":"\u003cp\u003e\u003cstrong\u003eSupertech Performance SPRK-H100DR\/240 Dual Valve Spring 84@ 34.85mm SPR-H100DR + RET-H70\/T1 + SEAT-H\/N240\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eSupertech valve springs are computer designed to ensure smooth harmonics under high RPM and load. The stress levels are kept under control and fatigue is reduced for long durability under extreme conditions. These springs are made of premium Superclean Chrome Silicon Vanadium steel alloy, which is a tough alloy that was designed for higher performance and durability at high RPM's and memory retention.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 12px;\"\u003eOuter Spring O.D.: 30.20mm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 12px;\"\u003eOuter Spring I.D.: 22.20mm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 12px;\"\u003eInner Spring O.D.: 22.20mm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 12px;\"\u003eInner Spring I.D.: 16.80mm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 12px;\"\u003eSeat: 84 @ 34.85 (lbs@mm)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 12px;\"\u003eOpen (lift): 225 @ 11.80 (lbs@mm)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 12px;\"\u003eMax net lift: 14.20mm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 12px;\"\u003eCoil bind: 20.50mm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 12px;\"\u003eRate: 12.00 lbs\/mm\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eRetainer P\/N: RET-H70\/T1 (16) + SEAT-H\/N240 (16)\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"font-size: 12px;\"\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e This is for a complete set of dual intake and exhaust valve springs. Retainers and spring seats are included if they are part of the kit.\u003c\/span\u003e\u003c\/p\u003e","brand":"Supertech","offers":[{"title":"Default Title","offer_id":35089467998362,"sku":"ST-SPRK-H100DR-240","price":547.09,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0401\/5308\/8154\/products\/dual-spring-kits-cat_1_15.jpg?v=1594267048"},{"product_id":"supertech-performance-sprk-h1002d-240-dual-valve-spring-73at-34-8mm-spr-h1002d-ret-h70-t1-seat-h-n240","title":"Supertech Performance SPRK-H1002D\/240 Dual Valve Spring 73@ 34.8mm SPR-H1002D + RET-H70\/T1 + SEAT-H\/N240","description":"\u003cp\u003e\u003cstrong\u003eSupertech Performance SPRK-H1002D\/240 Dual Valve Spring 73@ 34.8mm SPR-H1002D + RET-H70\/T1 + SEAT-H\/N240\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eSupertech valve springs are computer designed to ensure smooth harmonics under high RPM and load. The stress levels are kept under control and fatigue is reduced for long durability under extreme conditions. These springs are made of premium Superclean Chrome Silicon Vanadium steel alloy, which is a tough alloy that was designed for higher performance and durability at high RPM's and memory retention.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 12px;\"\u003eOuter Spring O.D.: 29.05mm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 12px;\"\u003eOuter Spring I.D.: 21.85mm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 12px;\"\u003eInner Spring O.D.: 20.50mm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 12px;\"\u003eInner Spring I.D.: 15.50mm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 12px;\"\u003eSeat: 73 @ 34.85 (lbs@mm)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 12px;\"\u003eOpen (lift): 225 @ 11.80 (lbs@mm)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 12px;\"\u003eMax net lift: 15.30mm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 12px;\"\u003eCoil bind: 19.50mm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 12px;\"\u003eRate: 10.00 lbs\/mm\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eRetainer P\/N: RET-H70\/T1 (24) + SEAT-H\/N240 (24)\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"font-size: 12px;\"\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e This is for a complete set of dual intake and exhaust valve springs. Retainers and spring seats are included if they are part of the kit.\u003c\/span\u003e\u003c\/p\u003e","brand":"Supertech","offers":[{"title":"Default Title","offer_id":35089468162202,"sku":"ST-SPRK-H1002D-240","price":547.09,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0401\/5308\/8154\/products\/dual-spring-kits-cat_1_16.jpg?v=1594267043"},{"product_id":"supertech-performance-sprk-h1022d-sr20-dual-valve-spring-95-at-40-5-spr-h1021d-2024-ret-nsr20-t1-seat-sr20-6-for-det-use-seat-h-n240-on-exhaust","title":"Supertech Performance SPRK-H1022D\/SR20 Dual Valve Spring 95 @ 40.5  SPR-H1021D\/2024 + RET-NSR20\/T1 + SEAT-SR20\/6 (For DET use SEAT-H\/N240 on Exhaust)","description":"\u003cp\u003e\u003cstrong\u003eSupertech Performance SPRK-H1022D\/SR20 Dual Valve Spring 95 @ 40.5 SPR-H1021D\/2024 + RET-NSR20\/T1 + SEAT-SR20\/6 (For DET use SEAT-H\/N240 on Exhaust)\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eSupertech valve springs are computer designed to ensure smooth harmonics under high RPM and load. The stress levels are kept under control and fatigue is reduced for long durability under extreme conditions. These springs are made of premium Superclean Chrome Silicon Vanadium steel alloy, which is a tough alloy that was designed for higher performance and durability at high RPM's and memory retention.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eSpecificationa:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 12px;\"\u003eOuter Spring O.D.: 30.00mm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 12px;\"\u003eOuter Spring I.D.: 21.80mm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 12px;\"\u003eInner Spring O.D.: 20.50mm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 12px;\"\u003eInner Spring I.D.: 15.50mm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 12px;\"\u003eSeat: 95 @ 40.5 (lbs@mm)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 12px;\"\u003eOpen (lift): 230 @ 12.0 (lbs@mm)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 12px;\"\u003eMax net lift: 16.00mm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 12px;\"\u003eCoil bind: 19.50mm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 12px;\"\u003eRate: 11.20 lbs\/mm\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eRetainer P\/N: RET-NSR20\/T1 (16) + SEAT-SR20\/6 (8 for Intake) + SEAT-H\/N240 (8 for Exhaust)\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e This is for a complete set of dual intake and exhaust valve springs, \u0026amp; retainers and spring seats.\u003c\/p\u003e","brand":"Supertech","offers":[{"title":"Default Title","offer_id":35089469866138,"sku":"ST-SPRK-H1022D-SR20","price":607.56,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0401\/5308\/8154\/products\/dual-spring-kits-cat_1_17.jpg?v=1594267045"},{"product_id":"supertech-performance-sprk-h1021d-sr20-dual-valve-spring-106at-40-5-spr-h1021d-sr20-ret-nsr20-t1-seat-sr20-6-for-det-use-seat-h-n240-on-exhaust","title":"Supertech Performance SPRK-H1021D\/SR20 Dual Valve Spring 106@ 40.5 SPR-H1021D\/SR20 + RET-NSR20\/T1 + SEAT-SR20\/6 (For DET use SEAT-H\/N240 on Exhaust)","description":"\u003cp\u003e\u003cstrong\u003eSupertech Performance SPRK-H1021D\/SR20 Dual Valve Spring 106@ 40.5 SPR-H1021D\/SR20 + RET-NSR20\/T1 + SEAT-SR20\/6 (For DET use SEAT-H\/N240 on Exhaust)\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eSupertech valve springs are computer designed to ensure smooth harmonics under high RPM and load. The stress levels are kept under control and fatigue is reduced for long durability under extreme conditions. These springs are made of premium Superclean Chrome Silicon Vanadium steel alloy, which is a tough alloy that was designed for higher performance and durability at high RPM's and memory retention.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 12px;\"\u003eOuter Spring O.D.: 30.00mm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 12px;\"\u003eOuter Spring I.D.: 21.80mm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 12px;\"\u003eInner Spring O.D.: 21.30mm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 12px;\"\u003eInner Spring I.D.: 15.50mm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 12px;\"\u003eSeat: 106 @ 40.5 (lbs@mm)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 12px;\"\u003eOpen (lift): 265 @ 12.0 (lbs@mm)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 12px;\"\u003eMax net lift: 15.50mm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 12px;\"\u003eCoil bind: 25.00mm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 12px;\"\u003eRate: 13.20 lbs\/mm\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eRetainer P\/N: RET-NSR20\/T1 (16) + SEAT-SR20\/6 (8 for Intake) + SEAT-H\/N240 (8 for Exhaust)\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"font-size: 12px;\"\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e This is for a complete set of dual intake and exhaust valve springs. Retainers and spring seats are included if they are part of the kit.\u003c\/span\u003e\u003c\/p\u003e","brand":"Supertech","offers":[{"title":"Default Title","offer_id":35089470292122,"sku":"ST-SPRK-H1021D-SR20","price":607.56,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0401\/5308\/8154\/products\/dual-spring-kits-cat_1_18.jpg?v=1594267047"},{"product_id":"supertech-performance-sprk-h1020d-sr20-dual-valve-spring-116at-40-5-spr-h1020d-sr20-ret-nsr20-t1-seat-sr20-6-for-det-use-seat-h-n240-on-exhaust","title":"Supertech Performance SPRK-H1020D\/SR20 Dual Valve Spring 116@ 40.5 SPR-H1020D\/SR20 +RET-NSR20\/T1 + SEAT-SR20\/6 (For DET use SEAT-H\/N240 on Exhaust","description":"\u003cp\u003e\u003cstrong\u003eSupertech Performance SPRK-H1020D\/SR20 Dual Valve Spring 116@ 40.5 SPR-H1020D\/SR20 +RET-NSR20\/T1 + SEAT-SR20\/6 (For DET use SEAT-H\/N240 on Exhaust\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eSupertech valve springs are computer designed to ensure smooth harmonics under high RPM and load. The stress levels are kept under control and fatigue is reduced for long durability under extreme conditions. These springs are made of premium Superclean Chrome Silicon Vanadium steel alloy, which is a tough alloy that was designed for higher performance and durability at high RPM's and memory retention.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eSpecufications:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 12px;\"\u003eOuter Spring O.D.: 30.00mm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 12px;\"\u003eOuter Spring I.D.: 21.80mm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 12px;\"\u003eInner Spring O.D.: 21.30mm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 12px;\"\u003eInner Spring I.D.: 15.50mm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 12px;\"\u003eSeat: 116 @ 40.5 (lbs@mm)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 12px;\"\u003eOpen (lift): 275 @ 12.0 (lbs@mm)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 12px;\"\u003eMax net lift: 15.00mm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 12px;\"\u003eCoil bind: 25.50mm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 12px;\"\u003eRate: 13.20 lbs\/mm\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eRetainer P\/N: RET-NSR20\/T1 (16) + SEAT-SR20\/6 (8 for Intake) + SEAT-H\/N240 (8 for Exhaust)\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e This is for a complete set of dual intake and exhaust valve springs. Retainers and spring seats are included if they are part of the kit.\u003c\/p\u003e","brand":"Supertech","offers":[{"title":"Default Title","offer_id":35089470783642,"sku":"ST-SPRK-H1020D-SR20","price":607.56,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0401\/5308\/8154\/products\/dual-spring-kits-cat_1_19.jpg?v=1594267050"},{"product_id":"supertech-performance-sprk-2035-2022-dual-valve-spring-93-at37-5-spr-2035-2022-ret-nsr20-t1-factory-seat","title":"Supertech Performance SPRK-2035-2022 Dual Valve spring 93 @37.5 SPR-2035-2022 + RET-NSR20\/T1 + Factory Seat","description":"\u003cp\u003e\u003cstrong\u003eSupertech Performance SPRK-2035-2022 Dual Valve spring 93 @37.5 SPR-2035-2022 + RET-NSR20\/T1 + Factory Seat\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eSupertech valve springs are computer designed to ensure smooth harmonics under high RPM and load. The stress levels are kept under control and fatigue is reduced for long durability under extreme conditions. These springs are made of premium Superclean Chrome Silicon Vanadium steel alloy, which is a tough alloy that was designed for higher performance and durability at high RPM's and memory retention.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 12px;\"\u003eOuter Spring O.D.: 30.00mm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 12px;\"\u003eOuter Spring I.D.: 21.80mm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 12px;\"\u003eInner Spring O.D.: 20.50mm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 12px;\"\u003eInner Spring I.D.: 15.50mm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 12px;\"\u003eSeat: 100 @ 37.3 (lbs@mm)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 12px;\"\u003eOpen (lift): 194 @ 10 (lbs@mm)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 12px;\"\u003eMax net lift: 15.70mm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 12px;\"\u003eCoil bind: 19.50mm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 12px;\"\u003eRate: 9.40 lbs\/mm\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eRetainer P\/N: RET-NSR20\/T1 (16) + Factory Seat\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e This is for a complete set of dual intake and exhaust valve springs. Retainers and spring seats are included if they are part of the kit.\u003c\/p\u003e","brand":"Supertech","offers":[{"title":"Default Title","offer_id":35089472848026,"sku":"ST-SPRK-2035-2022","price":496.69,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0401\/5308\/8154\/products\/dual-spring-kits-cat_1_20.jpg?v=1594267053"},{"product_id":"supertech-performance-sprk-h1022d-ve-dual-valve-spring-123-at-37-5-spr-h1022d-ve-ret-nsr20-t1-fact-seat-to-increase-net-lift-it-is-necessary-to-machine-inner-spring-boss","title":"Supertech Performance SPRK-H1022D-VE Dual Valve Spring 123 @ 37.5 SPR-H1022D-VE + RET-NSR20\/T1 + Fact Seat (to increase net lift it is necessary to machine inner spring boss)","description":"\u003cp\u003e\u003cstrong\u003eSupertech Performance SPRK-H1022D-VE Dual Valve Spring 123 @ 37.5 SPR-H1022D-VE + RET-NSR20\/T1 + Fact Seat (to increase net lift it is necessary to machine inner spring boss)\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eSupertech valve springs are computer designed to ensure smooth harmonics under high RPM and load. The stress levels are kept under control and fatigue is reduced for long durability under extreme conditions. These springs are made of premium Superclean Chrome Silicon Vanadium steel alloy, which is a tough alloy that was designed for higher performance and durability at high RPM's and memory retention.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 12px;\"\u003eOuter Spring O.D.: 30.00mm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 12px;\"\u003eOuter Spring I.D.: 21.80mm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 12px;\"\u003eInner Spring O.D.: 20.50mm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 12px;\"\u003eInner Spring I.D.: 15.50mm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 12px;\"\u003eSeat: 130 @ 37.3 (lbs@mm)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 12px;\"\u003eOpen (lift): 266 @ 10 (lbs@mm)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 12px;\"\u003eMax net lift: 11.50mm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 12px;\"\u003eCoil bind: 19.50mm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 12px;\"\u003eRate: 11.20 lbs\/mm\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eRetainer P\/N: RET-NSR20\/T1 (16) + OEM SEAT (To increase Net Lift it is necessary to machine inner spring boss)\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"font-size: 12px;\"\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e This is for a complete set of dual intake and exhaust valve springs. Retainers and spring seats are included if they are part of the kit.\u003c\/span\u003e\u003c\/p\u003e","brand":"Supertech","offers":[{"title":"Default Title","offer_id":35089474715802,"sku":"ST-SPRK-H1022D-VE","price":497.59,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0401\/5308\/8154\/products\/dual-spring-kits-cat_1_21.jpg?v=1594267063"},{"product_id":"supertech-performance-sprk-h1021d-ve-dual-valve-spring-138-at-37-5-spr-h1021d-ve-ret-nsr20-t1-fact-seat-to-increase-net-lift-it-is-necessary-to-machine-inner-spring-boss","title":"Supertech Performance SPRK-H1021D-VE Dual Valve Spring 138 @ 37.5 SPR-H1021D-VE + RET-NSR20\/T1 + Fact Seat (to increase net lift it is necessary to machine inner spring boss)","description":"\u003cp\u003e\u003cstrong\u003eSupertech Performance SPRK-H1021D-VE Dual Valve Spring 138 @ 37.5 SPR-H1021D-VE + RET-NSR20\/T1 + Fact Seat (to increase net lift it is necessary to machine inner spring boss)\u003c\/strong\u003e\u003c\/p\u003e","brand":"Supertech","offers":[{"title":"Default Title","offer_id":35089477042330,"sku":"ST-SPRK-H1021D-VE","price":497.59,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0401\/5308\/8154\/products\/dual-spring-kits-cat_1_22.jpg?v=1594267065"},{"product_id":"supertech-performance-sprk-ts1015-2-dual-valve-spring-84at-35mm-24-spr-ts1015-2-24-ret-nvg1015-t1-24-seat-ts1015","title":"Supertech Performance SPRK-TS1015\/2 Dual Valve Spring 84@ 35mm  (24) SPR-TS1015\/2 + (24) RET-NVG1015\/T1 + (24)SEAT-TS1015","description":"\u003cp\u003e\u003cstrong\u003eSupertech Performance SPRK-TS1015\/2 Dual Valve Spring 84@ 35mm (24) SPR-TS1015\/2 + (24) RET-NVG1015\/T1 + (24)SEAT-TS1015\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eSupertech valve springs are computer designed to ensure smooth harmonics under high RPM and load. The stress levels are kept under control and fatigue is reduced for long durability under extreme conditions. These springs are made of premium Superclean Chrome Silicon Vanadium steel alloy, which is a tough alloy that was designed for higher performance and durability at high RPM's and memory retention.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 12px;\"\u003eOuter Spring O.D.: 27.50mm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 12px;\"\u003eOuter Spring I.D.: 20.00mm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 12px;\"\u003eInner Spring O.D.: 20.00mm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 12px;\"\u003eInner Spring I.D.: 15.20mm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 12px;\"\u003eSeat: 84 @ 35 (lbs@mm)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 12px;\"\u003eOpen (lift): 202 @ 10 (lbs@mm)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 12px;\"\u003eMax net lift: 12.00mm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 12px;\"\u003eCoil bind: 20.70mm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 12px;\"\u003eRate: 12.70 lbs\/mm\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eRetainer P\/N: RET-NVG1015\/T1 (24) + SEAT-TS1015 (24)\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"font-size: 12px;\"\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e This is for a complete set of dual intake and exhaust valve springs. Retainers and spring seats are included if they are part of the kit.\u003c\/span\u003e\u003c\/p\u003e","brand":"Supertech","offers":[{"title":"Default Title","offer_id":35089479925914,"sku":"ST-SPRK-TS1015-2","price":820.59,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0401\/5308\/8154\/products\/dual-spring-kits-cat_1_24.jpg?v=1594267080"},{"product_id":"supertech-performance-sprk-2081-rb25-single-valve-spring-kit-80lbs-at30-6mm-spr-2081-rb25-24-nvg1015-t1-24-seat-ss2082-e-12-oe-seat","title":"Supertech Performance SPRK-2081\/RB25 Single Valve spring kit 80lbs @30.6mm SPR-2081\/RB25 (24) + NVG1015\/T1 (24) + Seat-SS2082-E (12) + OE SEAT","description":"\u003cp\u003e\u003cstrong\u003eSupertech Performance SPRK-2081\/RB25 Single Valve spring kit 80lbs @30.6mm SPR-2081\/RB25 (24) + NVG1015\/T1 (24) + Seat-SS2082-E (12) + OE SEAT\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eSupertech valve springs are computer designed to ensure smooth harmonics under high RPM and load. The stress levels are kept under control and fatigue is reduced for long durability under extreme conditions. These springs are made of premium Superclean Chrome Silicon Vanadium steel alloy, which is a tough alloy that was designed for higher performance and durability at high RPM's and memory retention.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 12px;\"\u003eFor Hydraulic Lifter\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 12px;\"\u003eOuter Spring O.D.: 27.50mm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 12px;\"\u003eOuter Spring I.D.: 20.00mm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 12px;\"\u003eSeat: 85 @ 30.6 (lbs@mm)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 12px;\"\u003eOpen (lift): 171 @ 9 (lbs@mm)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 12px;\"\u003eMax net lift: 9.90mm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 12px;\"\u003eCoil bind: 20.70mm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 12px;\"\u003eRate: 9.60 lbs\/mm\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eRetainer P\/N: RET-NVG1015\/T1 (24) + Intake OE seat (12 for Intake) + Exhaust SS-2820-E+OE (12 for Exhaust)\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"font-size: 12px;\"\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e This is for a complete set of single intake and exhaust valve springs. Retainers and spring seats are included if they are part of the kit.\u003c\/span\u003e\u003c\/p\u003e","brand":"Supertech","offers":[{"title":"Default Title","offer_id":35089480188058,"sku":"ST-SPRK-2081-RB25","price":726.3,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0401\/5308\/8154\/products\/dual-spring-kits-cat_1_25.jpg?v=1594267082"},{"product_id":"supertech-performance-sprk-ts1015-rb25-dual-valve-spring-kit-83lbs-at35mm-spr-ts1015-rb25-24-nvg1015-t1-24-seat-rb25-12-seat-rb25-e-12","title":"Supertech Performance SPRK-TS1015\/RB25 Dual Valve spring kit 83lbs @35mm SPR-TS1015\/RB25 (24) + NVG1015\/T1 (24) + Seat-RB25 (12) + Seat-RB25-E (12)","description":"\u003cp\u003e\u003cstrong\u003eSupertech Performance SPRK-TS1015\/RB25 Dual Valve spring kit 83lbs @35mm SPR-TS1015\/RB25 (24) + NVG1015\/T1 (24) + Seat-RB25 (12) + Seat-RB25-E (12)\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eSupertech RB25DET Solid 83lb Dual Valvesprings Retainers Kit\u003c\/p\u003e\u003cp\u003eSupertech valve springs are made with premium Super Clean Chrome silicon Vanadium Steel alloy for the highest performance and durability at high rpm's. Computer designed to ensure that wire stress levels do not overpass the limits of stress defined in the diagrams of fatigue for long durability under extreme conditions. Computer software also allows us to make sure that the harmonics are well under control. The retainers are manufactured with high quality military certified Titanium alloy, CNC machined for a tight fit that will ensure a long durability.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e\u003ctable border=\"1\" align=\"left\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eCAR MAKE\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eNissan\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eCAR MODEL\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eSkyline\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eOUTER SPRING DIAMETER\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e27.50mm (OD) \/ 20.00mm (ID)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eMAX NET LIFT\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e14.30mm\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eINNER SPRING DIAMETER\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e20.00mm (OD) \/ 15.20mm (ID)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eSEAT PRESSURE\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e83@35\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eOPEN PRESSURE\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e216!11\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eRATE INCH\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e12.10 lbs\/mm\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eCOIL BIND\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e20.70mm\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eENGINE SPECIFICATIONS\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eRB25DET Solid Lifter\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e","brand":"Supertech","offers":[{"title":"Default Title","offer_id":35089480908954,"sku":"ST-SPRK-TS1015-RB25","price":882.47,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0401\/5308\/8154\/products\/dual-spring-kits-cat_1_26.jpg?v=1594267087"},{"product_id":"supertech-performance-sprk-m1005s-rb-single-valve-spring-62-at-39-9-24-spr-m1005s-rb-24-ret-nrb60-ts-ss-3025","title":"Supertech Performance SPRK-M1005S\/RB Single Valve Spring 62 @ 39.9(24) SPR-M1005S\/RB + (24)RET-NRB60\/TS+ SS-3025","description":"\u003cp\u003e\u003cstrong\u003eSupertech Performance SPRK-M1005S\/RB Single Valve Spring 62 @ 39.9(24) SPR-M1005S\/RB + (24)RET-NRB60\/TS+ SS-3025\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eSupertech Skyline RB26DETT 62lb Single Valvesprings Retainer\u003c\/p\u003e\u003cp\u003eSupertech valve springs are made with premium Super Clean Chrome silicon Vanadium Steel alloy for the highest performance and durability at high rpm's. Computer designed to ensure that wire stress levels do not overpass the limits of stress defined in the diagrams of fatigue for long durability under extreme conditions. Computer software also allows us to make sure that the harmonics are well under control. The retainers are manufactured with high quality military certified Titanium alloy, CNC machined for a tight fit that will ensure a long durability.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e\u003ctable border=\"1\" align=\"left\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eCAR MAKE\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eNissan\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eCAR MODEL\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eSkyline R32 R33 R34\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eENGINE SPECIFICATIONS\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eRB26DETT\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e","brand":"Supertech","offers":[{"title":"Default Title","offer_id":35089482547354,"sku":"ST-SPRK-M1005S-RB","price":655.65,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0401\/5308\/8154\/products\/dual-spring-kits-cat_1_27.jpg?v=1594267089"},{"product_id":"supertech-performance-sprk-m1007s-rb-single-valve-spring-70-at-40-7-24-spr-m1007s-rb-24-ret-nrb60-ts","title":"Supertech Performance SPRK-M1007S\/RB Single Valve Spring 70 @ 40.7 (24) SPR-M1007S\/RB + (24)RET-NRB60\/TS","description":"\u003cp\u003e\u003cstrong\u003eSupertech Performance SPRK-M1007S\/RB Single Valve Spring 70 @ 40.7 (24) SPR-M1007S\/RB + (24)RET-NRB60\/TS\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eSupertech valve springs are computer designed to ensure smooth harmonics under high RPM and load. The stress levels are kept under control and fatigue is reduced for long durability under extreme conditions. These springs are made of premium Superclean Chrome Silicon Vanadium steel alloy, which is a tough alloy that was designed for higher performance and durability at high RPM's and memory retention.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 12px;\"\u003eOuter Spring O.D.: 28.10mm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 12px;\"\u003eOuter Spring I.D.: 20.00mm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 12px;\"\u003eSeat: 70 @ 40.7 (lbs@mm)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 12px;\"\u003eOpen (lift): 188 @ 11 (lbs@mm)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 12px;\"\u003eMax net lift: 16.00mm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 12px;\"\u003eCoil bind: 24.70mm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 12px;\"\u003eRate: 10.50 lbs\/mm\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eRetainer P\/N: RET-NRB60\/TS (24) + factory seat (opt. spring shim SS-3025)\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"font-size: 12px;\"\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e This is for a complete set of single intake and exhaust valve springs. Retainers and spring seats are included if they are part of the kit.\u003c\/span\u003e\u003c\/p\u003e","brand":"Supertech","offers":[{"title":"Default Title","offer_id":35089482809498,"sku":"ST-SPRK-M1007S-RB","price":624.64,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0401\/5308\/8154\/products\/dual-spring-kits-cat_1_28.jpg?v=1594267092"},{"product_id":"supertech-performance-sprk-m1007d-rb-dual-valve-spring-in-92-ex-82-at40-7-24-spr-m1007d-rb-24-ret-nrb60-ts","title":"Supertech Performance SPRK-M1007D\/RB Dual Valve Spring In: 92 Ex:82 @40.7  (24)SPR-M1007D\/RB + (24) RET-NRB60\/TS","description":"\u003cp\u003e\u003cstrong\u003eSupertech Performance SPRK-M1007D\/RB Dual Valve Spring In: 92 Ex:82 @40.7 (24)SPR-M1007D\/RB + (24) RET-NRB60\/TS\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eSupertech valve springs are computer designed to ensure smooth harmonics under high RPM and load. The stress levels are kept under control and fatigue is reduced for long durability under extreme conditions. These springs are made of premium Superclean Chrome Silicon Vanadium steel alloy, which is a tough alloy that was designed for higher performance and durability at high RPM's and memory retention.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 12px;\"\u003eOuter Spring O.D.: 28.10mm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 12px;\"\u003eOuter Spring I.D.: 20.00mm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 12px;\"\u003eInner Spring O.D.: 20.00mm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 12px;\"\u003eInner Spring I.D.: 15.20mm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 12px;\"\u003eSeat: In: 92 @ 40.7 Ex: 82 @ 40.7 (lbs@mm)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 12px;\"\u003eOpen (lift): In: 232 @ 11 Ex: 222 @ 11 (lbs@mm)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 12px;\"\u003eMax net lift: 15.30mm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 12px;\"\u003eCoil bind: 24.70mm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 12px;\"\u003eRate: 12.50 lbs\/mm\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eRetainer P\/N: RET-NRB60\/TS (24) + factory seat\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"font-size: 12px;\"\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e This is for a complete set of dual intake and exhaust valve springs. Retainers and spring seats are included if they are part of the kit.\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003c\/p\u003e","brand":"Supertech","offers":[{"title":"Default Title","offer_id":35089484054682,"sku":"ST-SPRK-M1007D-RB","price":715.54,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0401\/5308\/8154\/products\/dual-spring-kits-cat_2_1.jpg?v=1594267094"},{"product_id":"supertech-performance-sprk-ts1015-rb26-dual-valve-spring-in-64-ex-71-at35-5-24-spr-ts1015-rb26-24-ret-nrb60-ts-seat-rb26-4-3","title":"Supertech Performance SPRK-TS1015\/RB26 Dual Valve Spring In:64 Ex: 71 @35.5 (24)SPR-TS1015\/RB26 + (24)RET-NRB60\/TS + SEAT-RB26\/4.3","description":"\u003cp\u003e\u003cstrong\u003eSupertech Performance SPRK-TS1015\/RB26 Dual Valve Spring In:64 Ex: 71 @35.5 (24)SPR-TS1015\/RB26 + (24)RET-NRB60\/TS + SEAT-RB26\/4.3\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eSupertech valve springs are computer designed to ensure smooth harmonics under high RPM and load. The stress levels are kept under control and fatigue is reduced for long durability under extreme conditions. These springs are made of premium Superclean Chrome Silicon Vanadium steel alloy, which is a tough alloy that was designed for higher performance and durability at high RPM's and memory retention.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 12px;\"\u003eOuter Spring O.D.: 27.50mm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 12px;\"\u003eOuter Spring I.D.: 20.00mm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 12px;\"\u003eInner Spring O.D.: 20.00mm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 12px;\"\u003eInner Spring I.D.: 15.20mm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 12px;\"\u003eSeat: In: 71 @ 35.0 Ex: 64 @ 35.0 (lbs@mm)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 12px;\"\u003eOpen (lift): Int: 204 @ 11 Ex: 197 @ 11 (lbs@mm)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 12px;\"\u003eMax net lift: 14.30mm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 12px;\"\u003eCoil bind: 20.70mm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 12px;\"\u003eRate: 12.10 lbs\/mm\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eRetainer P\/N: RET-NRB60\/TS (24) + SEAT-RB26\/TS4 (no Factory) (24)\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"font-size: 12px;\"\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e This is for a complete set of dual intake and exhaust valve springs. Retainers and spring seats are included if they are part of the kit.\u003c\/span\u003e\u003c\/p\u003e","brand":"Supertech","offers":[{"title":"Default Title","offer_id":35089485398170,"sku":"ST-SPRK-TS1015-RB26","price":882.47,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0401\/5308\/8154\/products\/dual-spring-kits-cat_2_2.jpg?v=1594267096"},{"product_id":"supertech-performance-sprk-ts1015-n35-dual-valve-spring-82at-35mm-24-spr-ts1015-n35-24-ret-ts5-5-t6-seat-ts1015","title":"Supertech Performance SPRK-TS1015\/N35 Dual Valve Spring  82@ 35mm (24)SPR-TS1015\/N35 + (24)RET-TS5.5\/T6 + SEAT-TS1015","description":"\u003cp\u003e\u003cstrong\u003eSupertech Performance SPRK-TS1015\/N35 Dual Valve Spring 82@ 35mm (24)SPR-TS1015\/N35 + (24)RET-TS5.5\/T6 + SEAT-TS1015\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eSupertech valve springs are computer designed to ensure smooth harmonics under high RPM and load. The stress levels are kept under control and fatigue is reduced for long durability under extreme conditions. These springs are made of premium Superclean Chrome Silicon Vanadium steel alloy, which is a tough alloy that was designed for higher performance and durability at high RPM's and memory retention.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 12px;\"\u003eOuter Spring O.D.: 27.50mm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 12px;\"\u003eOuter Spring I.D.: 20.00mm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 12px;\"\u003eInner Spring O.D.: 20.00mm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 12px;\"\u003eInner Spring I.D.: 15.20mm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 12px;\"\u003eSeat: 82 @ 35 (lbs@mm)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 12px;\"\u003eOpen (lift): 215 @ 11 (lbs@mm)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 12px;\"\u003eMax net lift: 14.50mm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 12px;\"\u003eCoil bind: 20.70mm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 12px;\"\u003eRate: 12.10 lbs\/mm\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eRetainer P\/N: RET-TS5.5\/T6 (24) + SEAT-TS1015 (12 for Intake) + Factory seat (12 for Exhaust)\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"font-size: 12px;\"\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e This is for a complete set of dual intake and exhaust valve springs. Retainers and spring seats are included if they are part of the kit.\u003c\/span\u003e\u003c\/p\u003e","brand":"Supertech","offers":[{"title":"Default Title","offer_id":35089486971034,"sku":"ST-SPRK-TS1015-N35","price":820.59,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0401\/5308\/8154\/products\/dual-spring-kits-cat_2_3.jpg?v=1594267098"},{"product_id":"supertech-performance-sprk-ts2081-n35-single-valve-spring-55-at-35mm-24-spr-ts2081-n35-24-ret-ts5-5-t6-fact-seat","title":"Supertech Performance SPRK-TS2081\/N35 Single Valve Spring 55 @ 35mm (24)SPR-TS2081\/N35 + (24)RET-TS5.5\/T6 + Fact seat","description":"\u003cp\u003e\u003cstrong\u003eSupertech Performance SPRK-TS2081\/N35 Single Valve Spring 55 @ 35mm (24)SPR-TS2081\/N35 + (24)RET-TS5.5\/T6 + Fact seat\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eSupertech valve springs are computer designed to ensure smooth harmonics under high RPM and load. The stress levels are kept under control and fatigue is reduced for long durability under extreme conditions. These springs are made of premium Superclean Chrome Silicon Vanadium steel alloy, which is a tough alloy that was designed for higher performance and durability at high RPM's and memory retention.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 12px;\"\u003eOuter Spring O.D.: 27.50mm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 12px;\"\u003eOuter Spring I.D.: 20.00mm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 12px;\"\u003eSeat: 55 @ 35 (lbs@mm)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 12px;\"\u003eOpen (lift): 160 @ 11 (lbs@mm)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 12px;\"\u003eMax net lift: 14.50mm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 12px;\"\u003eCoil bind: 20.70mm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 12px;\"\u003eRate: 9.60 lbs\/mm\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eRetainer P\/N: RET-TS5.5\/T6 (24) + Factory seat\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"font-size: 12px;\"\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e This is for a complete set of single intake and exhaust valve springs. Retainers and spring seats are included if they are part of the kit.\u003c\/span\u003e\u003c\/p\u003e","brand":"Supertech","offers":[{"title":"Default Title","offer_id":35089488150682,"sku":"ST-SPRK-TS2081-N35","price":626.79,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0401\/5308\/8154\/products\/dual-spring-kits-cat_2_4.jpg?v=1594267104"},{"product_id":"supertech-performance-sprk-ts1015-nca-dual-valve-spring-kit-78-at35mm-spr-ts1015-ret-nvs15-t1-oem-seat-seat-ts1015-2-optional","title":"Supertech Performance SPRK-TS1015\/NCA Dual Valve spring kit 78 @35mm  SPR-TS1015 + RET-NVS15\/T1+OEM seat + SEAT-TS1015\/2 (optional)","description":"\u003cp\u003e\u003cstrong\u003eSupertech Performance SPRK-TS1015\/NCA Dual Valve spring kit 78 @35mm SPR-TS1015 + RET-NVS15\/T1+OEM seat + SEAT-TS1015\/2 (optional)\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eSupertech valve springs are computer designed to ensure smooth harmonics under high RPM and load. The stress levels are kept under control and fatigue is reduced for long durability under extreme conditions. These springs are made of premium Superclean Chrome Silicon Vanadium steel alloy, which is a tough alloy that was designed for higher performance and durability at high RPM's and memory retention.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 12px;\"\u003eOuter Spring O.D.: 27.50mm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 12px;\"\u003eOuter Spring I.D.: 20.00mm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 12px;\"\u003eInner Spring O.D.: 20.00mm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 12px;\"\u003eInner Spring I.D.: 15.20mm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 12px;\"\u003eSeat: 82 @ 10 (lbs@mm)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 12px;\"\u003eOpen (lift): 207 @ 10 (lbs@mm)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 12px;\"\u003eMax net lift: 14.30mm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 12px;\"\u003eCoil bind: 20.7mm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 12px;\"\u003eRate: 12.50 lbs\/mm\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eRetainer P\/N: RET-NVG1015\/T1 + OEM Seat\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e This is for a complete set of dual intake and exhaust valve springs, \u0026amp; retainers and spring seats.\u003c\/p\u003e","brand":"Supertech","offers":[{"title":"Default Title","offer_id":35089489133722,"sku":"ST-SPRK-TS1015-NCA","price":547.09,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0401\/5308\/8154\/products\/dual-spring-kits-cat_2_5.jpg?v=1594267110"},{"product_id":"supertech-performance-sprk-ts1012-nca-dual-valve-spring-kit-82-at35mm-spr-ts1015-ret-nvs15-t1-oem-seat-seat-ts1015-2-optional","title":"Supertech Performance SPRK-TS1012\/NCA Dual Valve spring kit 82 @35mm  SPR-TS1015 + RET-NVS15\/T1+OEM seat + SEAT-TS1015\/2 (optional)","description":"\u003cp\u003e\u003cstrong\u003eSupertech Performance SPRK-TS1012\/NCA Dual Valve spring kit 82 @35mm SPR-TS1015 + RET-NVS15\/T1+OEM seat + SEAT-TS1015\/2 (optional)\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eSupertech has been around for a long time in the Valvetrain industry, and has race proven their product year after year, and backed it up with world records and first place trophies. We use Supertech in our top level engine builds for good reason.\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eSupertech valve springs are made with premium Super Clean Chrome silicon Vanadium Steel alloy for the highest performance and durability at high rpm's. Computer designed to ensure that wire stress levels do not overpass the limits of stress defined in the diagrams of fatigue for long durability under extreme conditions. Computer software also allows us to make sure that the harmonics are well under control. The retainers are manufactured with high quality military certified Titanium alloy, CNC machined for a tight fit that will ensure a long durability.\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e\u003ctable border=\"1\" align=\"left\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eCAR MAKE\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eNissan\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eCAR MODEL\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e180SX\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eOUTER SPRING DIAMETER\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e27.50mm \/ 20.00mm\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eMAX NET LIFT\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e15.00mm\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eINNER SPRING DIAMETER\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e20.00mm \/ 15.20mm\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eSEAT PRESSURE\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e73 @ 35\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eOPEN PRESSURE\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e175 @ 10\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eRATE INCH\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e10.20 lbs\/mm\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eCOIL BIND\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e20.00mm\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eENGINE SPECIFICATIONS\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eCA18DET\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e","brand":"Supertech","offers":[{"title":"Default Title","offer_id":35089489920154,"sku":"ST-SPRK-TS1012-NCA","price":547.09,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0401\/5308\/8154\/products\/dual-spring-kits-cat_2_6.jpg?v=1594267112"},{"product_id":"supertech-performance-sprk-ts1012-gtr-dual-valve-spring-kit-int-60-at36mm-exh-80-at34-2mm-spr-ts1012-ret-ts5-5-t8-int-ret-ts5-5-t9-exh-seat-ts-1gtr","title":"Supertech Performance SPRK-TS1012\/GTR Dual Valve spring kit: int 60 @36mm exh 80 @34.2mm +SPR-TS1012 + RET-TS5.5\/T8(int)+RET-TS5.5\/T9(exh)+SEAT-TS\/1GTR","description":"\u003cp\u003e\u003cstrong\u003eSupertech Performance SPRK-TS1012\/GTR Dual Valve spring kit: int 60 @36mm exh 80 @34.2mm +SPR-TS1012 + RET-TS5.5\/T8(int)+RET-TS5.5\/T9(exh)+SEAT-TS\/1GTR\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eSupertech valve springs are made with premium Super Clean Chrome silicon Vanadium Steel alloy for the highest performance and durability at high rpm's. Computer designed to ensure that wire stress levels do not overpass the limits of stress defined in the diagrams of fatigue for long durability under extreme conditions. Computer software also allows us to make sure that the harmonics are well under control. The retainers are manufactured with high quality military certified Titanium alloy, CNC machined for a tight fit that will ensure a long durability.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e\u003ctable border=\"1\" align=\"left\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eCAR MAKE\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eNissan\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eCAR MODEL\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eSkyline GTR\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eMAX NET LIFT\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e14.20mm\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eSEAT PRESSURE\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e78lbs @ 34.20mm\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eCOIL BIND\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e20.00mm\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eENGINE SPECIFICATIONS\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eVR38DETT\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e","brand":"Supertech","offers":[{"title":"Default Title","offer_id":35089492476058,"sku":"ST-SPRK-TS1012-GTR","price":882.47,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0401\/5308\/8154\/products\/dual-spring-kits-cat_2_7.jpg?v=1594267117"},{"product_id":"supertech-performance-sprk-ts1015-gtr-dual-valve-spring-kit-70-at36mm-exh-90-at34-2mm-spr-ts1015-ret-ts5-5-t8-int-ret-ts5-5-t9-exh-seat-ts-1gtr","title":"Supertech Performance SPRK-TS1015\/GTR Dual Valve spring  kit: 70 @36mm Exh 90 @34.2mm +SPR-TS1015 + RET-TS5.5\/T8(int)+RET-TS5.5\/T9(exh)+SEAT-TS\/1GTR","description":"\u003cp\u003e\u003cstrong\u003eSupertech Performance SPRK-TS1015\/GTR Dual Valve spring kit: 70 @36mm Exh 90 @34.2mm +SPR-TS1015 + RET-TS5.5\/T8(int)+RET-TS5.5\/T9(exh)+SEAT-TS\/1GTR\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eSupertech valve springs are made with premium Super Clean Chrome silicon Vanadium Steel alloy for the highest performance and durability at high rpm's. Computer designed to ensure that wire stress levels do not overpass the limits of stress defined in the diagrams of fatigue for long durability under extreme conditions. Computer software also allows us to make sure that the harmonics are well under control. The retainers are manufactured with high quality military certified Titanium alloy, CNC machined for a tight fit that will ensure a long durability.\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e\u003ctable border=\"1\" align=\"left\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eCAR MAKE\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eNissan\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eCAR MODEL\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eSkyline GTR\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eENGINE SPECIFICATIONS\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eVR38DETT\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e","brand":"Supertech","offers":[{"title":"Default Title","offer_id":35089492967578,"sku":"ST-SPRK-TS1015-GTR","price":882.47,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0401\/5308\/8154\/products\/dual-spring-kits-cat_2_8.jpg?v=1594267126"},{"product_id":"supertech-performance-sprk-h1022s-tb48-single-valve-spring-kit-55-lbs-at-39mm-spr-h1022s-ret-h60-t1-seat-tb1020d","title":"Supertech Performance SPRK-H1022S-TB48  Single Valve spring kit 55 lbs @ 39mm SPR-H1022S + RET-H60\/T1 + SEAT-TB1020D","description":"\u003cp\u003e\u003cstrong\u003eSupertech Performance SPRK-H1022S-TB48 Single Valve spring kit 55 lbs @ 39mm SPR-H1022S + RET-H60\/T1 + SEAT-TB1020D\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eSupertech valve springs are made with premium Super Clean Chrome silicon Vanadium Steel alloy for the highest performance and durability at high rpm's. Computer designed to ensure that wire stress levels do not overpass the limits of stress defined in the diagrams of fatigue for long durability under extreme conditions. Computer software also allows us to make sure that the harmonics are well under control. The retainers are manufactured with high quality military certified Titanium alloy, CNC machined for a tight fit that will ensure a long durability.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e\u003ctable border=\"1\" align=\"left\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eCAR MAKE\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eNissan\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eCAR MODEL\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003ePatrol\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eENGINE SPECIFICATIONS\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eTB48DE\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e","brand":"Supertech","offers":[{"title":"Default Title","offer_id":35089494016154,"sku":"ST-SPRK-H1022S-TB48","price":791.74,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0401\/5308\/8154\/products\/dual-spring-kits-cat_2_9.jpg?v=1594267128"},{"product_id":"supertech-performance-sprk-m1005s-tb48-single-valve-spring-kit-78-at-38-5mm-spr-m1005s-oem-retainer-oem-seat-opt-spring-shim-ss-3025","title":"Supertech Performance SPRK-M1005S-TB48  Single Valve spring Kit 78 @ 38.5mm SPR-M1005S + OEM Retainer + OEM Seat (opt. Spring shim SS-3025)","description":"\u003cp\u003e\u003cstrong\u003eSupertech Performance SPRK-M1005S-TB48 Single Valve spring Kit 78 @ 38.5mm SPR-M1005S + OEM Retainer + OEM Seat (opt. Spring shim SS-3025)\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eSupertech valve springs are made with premium Super Clean Chrome silicon Vanadium Steel alloy for the highest performance and durability at high rpm's. Computer designed to ensure that wire stress levels do not overpass the limits of stress defined in the diagrams of fatigue for long durability under extreme conditions. Computer software also allows us to make sure that the harmonics are well under control. The retainers are manufactured with high quality military certified Titanium alloy, CNC machined for a tight fit that will ensure a long durability.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e\u003ctable border=\"1\" align=\"left\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eCAR MAKE\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eNissan\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eCAR MODEL\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003ePatrol\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eENGINE SPECIFICATIONS\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eTB48DE\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e","brand":"Supertech","offers":[{"title":"Default Title","offer_id":35089494278298,"sku":"ST-SPRK-M1005S-TB48","price":255.96,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0401\/5308\/8154\/products\/dual-spring-kits-cat_2_10.jpg?v=1594267130"},{"product_id":"supertech-performance-sprk-h1021s-tb48-single-valve-spring-kit-77-at-39mm-spr-h1021s-ret-h60-t1-seat-tb1020d","title":"Supertech Performance SPRK-H1021S-TB48  Single Valve spring Kit 77 @ 39mm SPR-H1021S + RET-H60\/T1 + SEAT-TB1020D","description":"\u003cp\u003e\u003cstrong\u003eSupertech Performance SPRK-H1021S-TB48 Single Valve spring Kit 77 @ 39mm SPR-H1021S + RET-H60\/T1 + SEAT-TB1020D\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eSupertech valve springs are made with premium Super Clean Chrome silicon Vanadium Steel alloy for the highest performance and durability at high rpm's. Computer designed to ensure that wire stress levels do not overpass the limits of stress defined in the diagrams of fatigue for long durability under extreme conditions. Computer software also allows us to make sure that the harmonics are well under control. The retainers are manufactured with high quality military certified Titanium alloy, CNC machined for a tight fit that will ensure a long durability.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e\u003ctable border=\"1\" align=\"left\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eCAR MAKE\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eNissan\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eCAR MODEL\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003ePatrol\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eENGINE SPECIFICATIONS\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eTB48DE\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e","brand":"Supertech","offers":[{"title":"Default Title","offer_id":35089496834202,"sku":"ST-SPRK-H1021S-TB48","price":791.74,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0401\/5308\/8154\/products\/dual-spring-kits-cat_2_11.jpg?v=1594267129"},{"product_id":"supertech-performance-sprk-m1007s-tb48-single-valve-spring-kit-88-at-38-5mm-spr-m1007s-oem-retainer-oem-seat-opt-spring-shim-ss-3025","title":"Supertech Performance SPRK-M1007S-TB48 Single Valve spring Kit 88 @ 38.5mm SPR-M1007S + OEM Retainer + OEM Seat (opt. spring shim SS-3025)","description":"\u003cp\u003e\u003cstrong\u003eSupertech Performance SPRK-M1007S-TB48 Single Valve spring Kit 88 @ 38.5mm SPR-M1007S + OEM Retainer + OEM Seat (opt. spring shim SS-3025)\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eSupertech valve springs are made with premium Super Clean Chrome silicon Vanadium Steel alloy for the highest performance and durability at high rpm's. Computer designed to ensure that wire stress levels do not overpass the limits of stress defined in the diagrams of fatigue for long durability under extreme conditions. Computer software also allows us to make sure that the harmonics are well under control. The retainers are manufactured with high quality military certified Titanium alloy, CNC machined for a tight fit that will ensure a long durability.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e\u003ctable border=\"1\" align=\"left\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eCAR MAKE\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eNissan\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eCAR MODEL\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003ePatrol\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eENGINE SPECIFICATIONS\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eTB48DE\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e","brand":"Supertech","offers":[{"title":"Default Title","offer_id":35089498112154,"sku":"ST-SPRK-M1007S-TB48","price":254.29,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0401\/5308\/8154\/products\/dual-spring-kits-cat_2_12.jpg?v=1594267131"},{"product_id":"supertech-performance-sprk-h1020-2024-dual-valve-spring-kit-102-at-39mm-spr-h1020-2024-ret-h60-t1-seat-tb1020d","title":"Supertech Performance SPRK-H1020+2024 Dual Valve spring Kit 102 @ 39mm SPR-H1020+2024 + RET-H60\/T1 + SEAT-TB1020D","description":"\u003cp\u003e\u003cstrong\u003eSupertech Performance SPRK-H1020+2024 Dual Valve spring Kit 102 @ 39mm SPR-H1020+2024 + RET-H60\/T1 + SEAT-TB1020D\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eSupertech valve springs are made with premium Super Clean Chrome silicon Vanadium Steel alloy for the highest performance and durability at high rpm's. Computer designed to ensure that wire stress levels do not overpass the limits of stress defined in the diagrams of fatigue for long durability under extreme conditions. Computer software also allows us to make sure that the harmonics are well under control. The retainers are manufactured with high quality military certified Titanium alloy, CNC machined for a tight fit that will ensure a long durability.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e\u003ctable border=\"1\" align=\"left\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eCAR MAKE\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eNissan\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eCAR MODEL\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003ePatrol\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eENGINE SPECIFICATIONS\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eTB48DE\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e","brand":"Supertech","offers":[{"title":"Default Title","offer_id":35089498439834,"sku":"ST-SPRK-H1020+2024","price":741.1,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0401\/5308\/8154\/products\/dual-spring-kits-cat_2_13.jpg?v=1594267142"},{"product_id":"supertech-performance-sprk-h1001d-c20-dual-valve-spring-kit-80-at-34mm-spr-h1001d-ret-h70-t1-seat-h1020ds-16","title":"Supertech Performance SPRK-H1001D-C20 Dual valve spring kit 80 @ 34mm \/ SPR-H1001D + RET-H70\/T1 + SEAT-H1020DS (16)","description":"\u003cp\u003e\u003cstrong\u003eSupertech Performance SPRK-H1001D-C20 Dual valve spring kit 80 @ 34mm \/ SPR-H1001D + RET-H70\/T1 + SEAT-H1020DS (16)\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eSupertech has been around for a long time in the Valvetrain industry, and has race proven their product year after year, and backed it up with world records and first place trophies. We use Supertech in our top level engine builds for good reason.\u003c\/p\u003e\u003cp\u003eSupertech valve springs are made with premium Super Clean Chrome silicon Vanadium Steel alloy for the highest performance and durability at high rpm's. Computer designed to ensure that wire stress levels do not overpass the limits of stress defined in the diagrams of fatigue for long durability under extreme conditions. Computer software also allows us to make sure that the harmonics are well under control. The retainers are manufactured with high quality military certified Titanium alloy, CNC machined for a tight fit that will ensure a long durability.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e\u003ctable border=\"1\" align=\"left\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eCAR MAKE\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eOpel Vauxhall\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eCAR MODEL\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eAstra Vectra Calibra\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eENGINE SPECIFICATIONS\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eC20XE\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e","brand":"Supertech","offers":[{"title":"Default Title","offer_id":35089498833050,"sku":"ST-SPRK-H1001D-C20","price":547.09,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0401\/5308\/8154\/products\/dual-spring-kits-cat_2_14.jpg?v=1594267147"},{"product_id":"supertech-performance-sprk-ts1015-su1-dual-valve-spring-70at-35-5mm-spr-ts1015-ret-ts60-wrx1-seat-ts-sub-no-oem","title":"Supertech Performance SPRK-TS1015\/SU1 Dual Valve Spring 70@ 35.5mm SPR-TS1015 + RET-TS60\/WRX1 + SEAT-TS\/SUB No OEM","description":"\u003cp\u003e\u003cstrong\u003eSupertech Performance SPRK-TS1015\/SU1 Dual Valve Spring 70@ 35.5mm SPR-TS1015 + RET-TS60\/WRX1 + SEAT-TS\/SUB No OEM\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eSupertech has been around for a long time in the Valvetrain industry, and has race proven their product year after year, and backed it up with world records and first place trophies. We use Supertech in our top level engine builds for good reason.\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eSupertech valve springs are made with premium Super Clean Chrome silicon Vanadium Steel alloy for the highest performance and durability at high rpm's. Computer designed to ensure that wire stress levels do not overpass the limits of stress defined in the diagrams of fatigue for long durability under extreme conditions. Computer software also allows us to make sure that the harmonics are well under control. The retainers are manufactured with high quality military certified Titanium alloy, CNC machined for a tight fit that will ensure a long durability.\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e\u003ctable border=\"1\" align=\"left\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eCAR MAKE\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eSubaru\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eCAR MODEL\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eImpreza WRX Sti\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eENGINE SPECIFICATIONS\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eEJ205 EJ257\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e","brand":"Supertech","offers":[{"title":"Default Title","offer_id":35089500864666,"sku":"ST-SPRK-TS1015-SU1","price":547.09,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0401\/5308\/8154\/products\/dual-spring-kits-cat_2_15.jpg?v=1594267153"},{"product_id":"supertech-performance-sprk-ts1015-su4-dual-valve-spring-82-at-34-25mm-spr-ts1015-ret-ts60-wrx1-seat-ts-sub-4-no-oem","title":"Supertech Performance SPRK-TS1015\/SU4 Dual Valve Spring 82 @ 34.25mm SPR-TS1015 + RET-TS60\/WRX1 + SEAT-TS\/SUB-4 No OEM","description":"\u003cp\u003e\u003cstrong\u003eSupertech Performance SPRK-TS1015\/SU4 Dual Valve Spring 82 @ 34.25mm SPR-TS1015 + RET-TS60\/WRX1 + SEAT-TS\/SUB-4 No OEM\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eSupertech valve springs are made with premium Super Clean Chrome silicon Vanadium Steel alloy for the highest performance and durability at high rpm's. Computer designed to ensure that wire stress levels do not overpass the limits of stress defined in the diagrams of fatigue for long durability under extreme conditions. Computer software also allows us to make sure that the harmonics are well under control. The retainers are manufactured with high quality military certified Titanium alloy, CNC machined for a tight fit that will ensure a long durability.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eSpecififcations:\u003c\/strong\u003e\u003c\/p\u003e\u003ctable border=\"1\" align=\"left\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eCAR MAKE\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eSubaru\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eCAR MODEL\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eImpreza WRX Sti\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eENGINE SPECIFICATIONS\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eEJ205 EJ257\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e","brand":"Supertech","offers":[{"title":"Default Title","offer_id":35089501159578,"sku":"ST-SPRK-TS1015-SU4","price":547.09,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0401\/5308\/8154\/products\/dual-spring-kits-cat_2_16.jpg?v=1594267155"},{"product_id":"supertech-performance-sprk-ts1015-su5-dual-valve-spring-70at-35-5mm-spr-ts1015-ret-ts60-wrx1-seat-ts-sub-5-no-oem","title":"Supertech Performance SPRK-TS1015\/SU5 Dual Valve Spring 70@ 35.5mm SPR-TS1015 + RET-TS60\/WRX1 + SEAT-TS\/SUB-5 No OEM","description":"\u003cp\u003e\u003cstrong\u003eSupertech Performance SPRK-TS1015\/SU5 Dual Valve Spring 70@ 35.5mm SPR-TS1015 + RET-TS60\/WRX1 + SEAT-TS\/SUB-5 No OEM\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eSupertech Subaru Impreza EJ25 Dual Valvesprings Retainer Kit\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eSupertech valve springs are made with premium Super Clean Chrome silicon Vanadium Steel alloy for the highest performance and durability at high rpm's. Computer designed to ensure that wire stress levels do not overpass the limits of stress defined in the diagrams of fatigue for long durability under extreme conditions. Computer software also allows us to make sure that the harmonics are well under control. The retainers are manufactured with high quality military certified Titanium alloy, CNC machined for a tight fit that will ensure a long durability.\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eSpecificatons:\u003c\/strong\u003e\u003c\/p\u003e\u003ctable border=\"1\" align=\"left\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eCAR MAKE\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eSubaru\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eCAR MODEL\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eImpreza\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eENGINE SPECIFICATIONS\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eEJ25\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e","brand":"Supertech","offers":[{"title":"Default Title","offer_id":35089504174234,"sku":"ST-SPRK-TS1015-SU5","price":588.31,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0401\/5308\/8154\/products\/dual-spring-kits-cat_2_17.jpg?v=1594267157"},{"product_id":"supertech-performance-sprk-ts1015-su6-dual-valve-spring-63at-36-1-24-spr-ts1015-24-ret-ts5-5-24-seat-ts-sub","title":"Supertech Performance SPRK-TS1015\/SU6 Dual Valve Spring 63@ 36.1 (24)SPR-TS1015 + (24) RET-TS5.5 + (24) SEAT-TS\/SUB","description":"\u003cp\u003e\u003cstrong\u003eSupertech Performance SPRK-TS1015\/SU6 Dual Valve Spring 63@ 36.1 (24)SPR-TS1015 + (24) RET-TS5.5 + (24) SEAT-TS\/SUB\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eSupertech Subaru 1g Non AVCS EZ30 63lb Valvesprings Retainer\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eSupertech valve springs are made with premium Super Clean Chrome silicon Vanadium Steel alloy for the highest performance and durability at high rpm's. Computer designed to ensure that wire stress levels do not overpass the limits of stress defined in the diagrams of fatigue for long durability under extreme conditions. Computer software also allows us to make sure that the harmonics are well under control. The retainers are manufactured with high quality military certified Titanium alloy, CNC machined for a tight fit that will ensure a long durability.\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e\u003ctable border=\"1\" align=\"left\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eCAR MAKE\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eSubaru\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eCAR MODEL\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e1st Gen Non AVCS\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eENGINE SPECIFICATIONS\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eEZ30 H6\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e","brand":"Supertech","offers":[{"title":"Default Title","offer_id":35089504436378,"sku":"ST-SPRK-TS1015-SU6","price":820.59,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0401\/5308\/8154\/products\/dual-spring-kits-cat_2_18.jpg?v=1594267159"},{"product_id":"supertech-performance-sprk-suez30-w-dual-valve-spring-85at-31-9-intake-65at-34-6-exhaust-spr-h1002d-12-spr-ts1012-12-ret-ts5-5-t1f-12-ret-h1000-t2-12-seat-ts-suh6e-12-exhaust-only","title":"Supertech Performance SPRK-SUEZ30\/W Dual Valve Spring 85@ 31.9 Intake \/ 65@ 34.6 Exhaust\/ SPR-H1002D(12)+SPR-TS1012(12)+RET-TS5.5-T1F(12)+RET-H1000\/T2(12)+SEAT-TS\/SUH6E(12 Exhaust only)","description":"\u003cp\u003e\u003cstrong\u003eSupertech Performance SPRK-SUEZ30\/W Dual Valve Spring 85@ 31.9 Intake \/ 65@ 34.6 Exhaust\/ SPR-H1002D(12)+SPR-TS1012(12)+RET-TS5.5-T1F(12)+RET-H1000\/T2(12)+SEAT-TS\/SUH6E(12 Exhaust only)\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eSupertech Subaru AVCS EZ30 85lb Dual Valvesprings Retainer\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eSupertech valve springs are made with premium Super Clean Chrome silicon Vanadium Steel alloy for the highest performance and durability at high rpm's. Computer designed to ensure that wire stress levels do not overpass the limits of stress defined in the diagrams of fatigue for long durability under extreme conditions. Computer software also allows us to make sure that the harmonics are well under control. The retainers are manufactured with high quality military certified Titanium alloy, CNC machined for a tight fit that will ensure a long durability.\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e\u003ctable border=\"1\" align=\"left\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eCAR MAKE\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eSubaru\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eCAR MODEL\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e2nd Gen AVCS\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eENGINE SPECIFICATIONS\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eEZ30 H6\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e","brand":"Supertech","offers":[{"title":"Default Title","offer_id":35089505026202,"sku":"ST-SPRK-SUEZ30\/W","price":1050.31,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0401\/5308\/8154\/products\/dual-spring-kits-cat_2_19.jpg?v=1594267161"},{"product_id":"supertech-performance-sprk-1002-brz-dual-valve-spring-kit-74-at35-5mm-spr-1002-brz-ret-h1000-brz-seat-h1002-brz","title":"Supertech Performance SPRK-1002-BRZ Dual valve spring kit 74 @35.5mm SPR-1002-BRZ + RET-H1000-BRZ + SEAT-H1002-BRZ","description":"\u003cp\u003e\u003cstrong\u003eSupertech Performance SPRK-1002-BRZ Dual valve spring kit 74 @35.5mm SPR-1002-BRZ + RET-H1000-BRZ + SEAT-H1002-BRZ\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eSupertech valve springs are made with premium Super Clean Chrome silicon Vanadium Steel alloy for the highest performance and durability at high rpm's. Computer designed to ensure that wire stress levels do not overpass the limits of stress defined in the diagrams of fatigue for long durability under extreme conditions. Computer software also allows us to make sure that the harmonics are well under control. The retainers are manufactured with high quality military certified Titanium alloy, CNC machined for a tight fit that will ensure a long durability.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e\u003ctable border=\"1\" align=\"left\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eCAR MAKE\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eSubaru\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eCAR MODEL\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eBRZ \/ FRS\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eMAX NET LIFT\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e14mm\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eSEAT PRESSURE\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e74 @ 33.5\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eOPEN PRESSURE\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e174 @ 10\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eRATE INCH\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e10.0mm\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eCOIL BIND\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e19.5mm\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eENGINE SPECIFICATIONS\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eFA20\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e","brand":"Supertech","offers":[{"title":"Default Title","offer_id":35089505255578,"sku":"ST-SPRK-1002-BRZ","price":602.45,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0401\/5308\/8154\/products\/dual-spring-kits-cat_2_20.jpg?v=1594267164"}],"url":"https:\/\/www.speedfactoryracing.net\/en-ca\/collections\/spring-and-retainer-kits.oembed?page=4","provider":"SpeedFactoryRacing","version":"1.0","type":"link"}