Filters
Sale
Supertech Performance SPRK-H100DR/1FZ Dual Valve Spring 65@ 36.20mm SPR-H100DR + RET-H70/T1 + SEAT-H/N240 (+ OEM) + Oil seals
ST-SPRK-H100DR-1FZ
Best selling products
Cylinder Head Parts
Engine
Except Excluded Sale Brands
Flash Sale Exclusions
New products
Spring and Retainer Kits
Supertech
Valve Springs
Supertech Performance SPRK-H100DR/1FZ Dual Valve Spring 65@ 36.20mm SPR-H100DR + RET-H70/T1 + SEAT-H/N240 (+ OEM) + Oil sealsSupertech valve springs are made with premium...
Sale
Supertech Performance SPRK-H100DR/240 Dual Valve Spring 84@ 34.85mm SPR-H100DR + RET-H70/T1 + SEAT-H/N240
ST-SPRK-H100DR-240
Best selling products
Cylinder Head Parts
Engine
Except Excluded Sale Brands
Flash Sale Exclusions
New products
Spring and Retainer Kits
Supertech
Valve Springs
Supertech Performance SPRK-H100DR/240 Dual Valve Spring 84@ 34.85mm SPR-H100DR + RET-H70/T1 + SEAT-H/N240Supertech valve springs are computer designed to ensure smooth harmonics under high...
Sale
Supertech Performance SPRK-H100DR/BM Dual valve spring 67lbs @ 35.70mm (24)SPR-H100DR/BM(24)+RET-K20A/T2+(24)SEAT-BM50
ST-SPRK-H100DR-BM
Best selling products
Cylinder Head Parts
Engine
Except Excluded Sale Brands
Flash Sale Exclusions
New products
Spring and Retainer Kits
Supertech
Valve Springs
Supertech Performance SPRK-H100DR/BM Dual valve spring 67lbs @ 35.70mm (24)SPR-H100DR/BM(24)+RET-K20A/T2+(24)SEAT-BM50
Sale
Supertech Performance SPRK-H100DR/BM-16 Dual valve spring 67lbs @ 35.70mm (16)SPR-H100DR/BM(16)+RET-K20A/T2+(16)SEAT-BM50
ST-SPRK-H100DR-BM-16
Best selling products
Cylinder Head Parts
Engine
Except Excluded Sale Brands
Flash Sale Exclusions
New products
Supertech
Valve Springs
Supertech Performance SPRK-H100DR/BM-16 Dual valve spring 67lbs @ 35.70mm (16)SPR-H100DR/BM(16)+RET-K20A/T2+(16)SEAT-BM50
Sale
Supertech Performance SPRK-H1020+2024 Dual Valve spring Kit 102 @ 39mm SPR-H1020+2024 + RET-H60/T1 + SEAT-TB1020D
ST-SPRK-H1020+2024
Best selling products
Cylinder Head Parts
Engine
Except Excluded Sale Brands
Flash Sale Exclusions
New products
Spring and Retainer Kits
Supertech
Valve Springs
Supertech Performance SPRK-H1020+2024 Dual Valve spring Kit 102 @ 39mm SPR-H1020+2024 + RET-H60/T1 + SEAT-TB1020DSupertech valve springs are made with premium Super Clean Chrome...
Sale
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
ST-SPRK-H1020D-SR20
Best selling products
Cylinder Head Parts
Engine
Except Excluded Sale Brands
Flash Sale Exclusions
New products
Spring and Retainer Kits
Supertech
Valve Springs
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 ExhaustSupertech valve springs are computer designed to...
Sale
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)
ST-SPRK-H1021D-VE
Best selling products
Cylinder Head Parts
Engine
Except Excluded Sale Brands
Flash Sale Exclusions
New products
Spring and Retainer Kits
Supertech
Valve Springs
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...
Sale
Sold Out
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)
ST-SPRK-H1021D-SR20
Best selling products
Cylinder Head Parts
Engine
Except Excluded Sale Brands
Flash Sale Exclusions
New products
Spring and Retainer Kits
Supertech
Valve Springs
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)Supertech valve springs are computer designed...
Sale
Supertech Performance SPRK-H1021S-TB48 Single Valve spring Kit 77 @ 39mm SPR-H1021S + RET-H60/T1 + SEAT-TB1020D
ST-SPRK-H1021S-TB48
Best selling products
Cylinder Head Parts
Engine
Except Excluded Sale Brands
Flash Sale Exclusions
New products
Spring and Retainer Kits
Supertech
Valve Springs
Supertech Performance SPRK-H1021S-TB48 Single Valve spring Kit 77 @ 39mm SPR-H1021S + RET-H60/T1 + SEAT-TB1020DSupertech valve springs are made with premium Super Clean Chrome...
Sale
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)
ST-SPRK-H1022D-VE
Best selling products
Cylinder Head Parts
Engine
Except Excluded Sale Brands
Flash Sale Exclusions
New products
Spring and Retainer Kits
Supertech
Valve Springs
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...
Sale
Supertech Performance SPRK-H1022D/S14 Dual Valve Spring 110lbs @37.60mm (SPR-H1022D/S14) + RET-H70/T1 + SEAT-H1002-S14)
ST-SPRK-H1022D-S14
Best selling products
Cylinder Head Parts
Engine
Except Excluded Sale Brands
Flash Sale Exclusions
New products
Supertech
Valve Springs
Supertech Performance SPRK-H1022D/S14 Dual Valve Spring 110lbs @37.60mm (SPR-H1022D/S14) + RET-H70/T1 + SEAT-H1002-S14)Supertech valve springs are made with premium Super Clean Chrome silicon Vanadium...
Sale
Sold Out
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)
ST-SPRK-H1022D-SR20
Best selling products
Cylinder Head Parts
Engine
Except Excluded Sale Brands
Flash Sale Exclusions
New products
Spring and Retainer Kits
Supertech
Valve Springs
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)Supertech valve springs are computer...