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Even the best combination of parts is only as good as the tune that makes it run properly and reliably.

This is where a highly experienced tuner becomes a critical and most important step for your precious build. With well over 2,000 cars tuned during the last 12yrs, SpeedFactory is your premier source for high performance tuning. We have dealt with hundreds of combinations - All Motor, Turbocharged, Supercharged, Nitrous, Water/Meth Injection, etc.
We have both a Dynojet 224x as well as a Dynapack hub dyno in-house and tune all partial throttle ranges (where you spend 90% of your time driving) as well as wide open throttle on the dyno. This results in a complete tune offering unmatched partial throttle driveability as well as excellent wide-open throttle performance.
You can rest assured that we have the knowledge and experience to properly tune your vehicle. We also have plenty of experience setting up and tuning your car at the dragstrip - Our project cars, racing results, and records over the years speak for themselves. If you want to get the most from your setup, we are here to help. Let our experience work for you!

We are EFI University Certified and factory trained Dealers for many of the systems listed. In-House socketing and board installation is offered on applicable systems.

We tune GM, Ford, Subaru, Nissan, Toyota, Mistubishi, Honda/Acura, and more!

Ask us if you have another system you would like tuned that is not on the list.

Readily Supported Systems:

  • NepTune, KTuner
  • Hondata S300, K-Pro, FlashPro
  • AEM FIC, V1, V2, Infinity
  • Greddy e-Manage
  • Haltech
  • HPTuners
  • Holley EFI
  • EFI Live
  • TunerPro/Nistune
  • NismoTronic
  • A'Pexi Power FC
  • EcuTek
  • Vi-PEC/Link
  • Adaptronic
  • MegaSquirt
  • Accel

We also now offer Remote Tuning, E-Tuning, and Off-Site Tuning!

Please give us a call to schedule your tune OR send us an email to:



NepTune EMS is a hardware/software combo that allows most 1988-2000 Honda/Acura's converted to OBD1 to be tuned. We also make products that allow real-time display of data from your engine management without a laptop via our LCD line, the TunerView.



The KTuner is a K series application tuning solution. Originallydesigned for use on the RSX platform, the KTuner can be used for many applications including flash based vehicles!




Hondata S300

The s300 version 3 is a plug in module to the OBD1 factory Honda Engine Computer (not included) which vastly expands the capabilities of the factory ECU. Forced induction, datalogging, real time programming, Bluetooth and engine protection are but a few of the comprehensive s300 features.


Hondata K-Pro

The K-Series Programmable ECU (K-Pro) consists of a hardware modification to any K-Series ECU, plus Windows software which allows you to re-program the ECU and datalog sensors.


Hondata FlashPro

The FlashPro allows full user tuning and datalogging of late model performance Hondas and Acuras. It includes Windows based software called FlashProManager. The FlashPro connects from your laptop's USB port to your vehicles diagnostic port to provide live tuning with a variety of calibrations, extensive real time and stored cataloging capabilities.


Cobb Accessport

COBB specializes in providing full tuning solutions for small displacement, turbocharged vehicles. COBB currently offers products for Subaru, BMW, Mazda, Mitsubishi, Ford, Nissan, and Porsche turbo vehicles.






The original AEM Engine Management System, offering complete engine control using a vehicle’s factory wiring harness and sensors.



The Series 2 Plug & Play EMS is a culmination of the original program, combining robust construction with the proven AEMtuner Software to deliver total engine control. 



AEM’s F/IC-6 allows racers to retard ignition and deliver accurate amounts of fuel to aftermarket forced induction race engines with up to 6 cylinders without the need for outdated FMUs or “boost hiding” controllers. This system works parallel to the factory ECU on OBD-II-equipped race vehicles with non-factory forced induction systems with or without variable cam timing and prevents tuning limitations due to complex factory timing patterns.



The Infinity ECU delivers state-of-the-art programmable EFI control capabilities typically found only at upper echelons of Motorsports. Through the Infinity ECU, AEM makes this technology affordable for both professional race teams and amateur racers.


Greddy e-Manage

The GReddy e-manage Ultimate is as close to a stand-alone management system as you can get while maintaining the best features of a "piggy-back" engine management; an economical price, the usage of existing sensors, the ability to easily alter factory settings and not having to tune from scratch.



Haltech is a world-leader in automotive engine management systems.



The factory programmed your late-model vehicle’s stock computer for bare bones performance, but HP Tuners unlocks the computer so you can tweak and tune for maximum performance.


Holley EFI

THE New Standard in Fuel Injection! Street to Race - From GM's factory COPO Camaro to NASCAR to your car!


EFI Live

Professional scan and tune tool for onboard vehicle electronics


Tuner Pro

TunerPro is a free, donate-if-you-like-it tuning platform aimed at making tuning easier and cheaper for the hobbyist and professional alike.



Nistune RealTime boards provide a way to make your factory Engine Control Unit (ECU)fully reprogramable similar to aftermarket Engine Control units for a fraction of the price. They use the latest technologies available on the market today to keep the size of the board small and cost lower.



NismoTronic is here to offer you a versatile Nissan ECU tuning solution designed to be both user friendly and extremely powerful!



EcuTek design and produce comprehensive ECU tuning, programming and diagnostics software, primarily for Subaru, Mitsubishi,Mazda, and Nissan vehicles. EcuTek's tuning software allows a true and clean recalibration of a vehicle's standard engine management ing the most effective way to tune modern vehicles. Some of the largest names in the tuning industry choose EcuTek.



Vi-PEC offers versatile, intelligent, performance engine controls with a range of ECUs, both WireIn and PlugIn. Engine management has never been easier or more reliable.



Link ECUs (Engine Control Units) are designed, developed in Christchurch and built in Auckland, New Zealand. We have a team of engineers that have (mostly) come through the University of Canterbury Engineering Department or through CPIT. These are the clever people that turn our dealers suggestions and wish lists into reality to control your vehicle’s engine and produce the results you’re after.



At Adaptronic we recognise that the ECU is part of a much larger system. Therefore, installation and setup requires knowledge of the rest of the EFI system on the car, such as factory trigger systems, ignition controllers and so on. We recognise this and have a database of vehicle and engine specific information based on years of experience.



The MegaSquirt line of Engine Management Systems are Do It Yourself (DIY) systems capable of full standalone engine management a a fraction of the cost of the what the 'big dogs' charge. They were designed with education and performance in mind, so that the do it yourselfer could learn the in's and out's of engine management and tuning, while learning a good bit about electronics in the process if you choose to build the unit yourself. What you end up with is an incredibly performing EMS that you built yourself for ultimate bragging rights when you ve your buddies behind as a speck in your rearview mirror. And you did or a quarter to a tenth of the cost of a 'big name' retail standalone ECU.



ACCEL DFI - ACCEL DFI's EFI engine management systems are volumetric efficiency-based EFI systems. They've been designed to run everything from mild street cars to all-out race vehicles, whether they're naturally aspirated, supercharged, nitrous-injected.



A'PEXi Power FC

 The Power FC proudly stands as A'PEXi's answer to the constraints and limitations associated with most piggy-back style fuel controllers. The Power FC is a complete, stand alone, total engine management system capable of handling virtually anything thrown in its path. From multiple point fuel and ignition control and boost settings, the Power FC is capable of accommodating even the most demanding performance enthusiasts.






To schedule your tune today, please click the TUNING SERVICES tab at the top of this page. 




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