What are you getting? A custom 2004+ STI E Tune (also for 06-14 WRX) offered by one of the most recognized tuners in the industry! We are actively tuning cars ranging from 300hp to 900 hp and offer the best results, guaranteed.
This tune is for a 2004+ Subaru STI or 2006-2014 WRX. Looking for a tune for your 2015+ WRX? Select This Tune Instead
Custom and thorough 2004+ STI E Tune for COBB Accessport (also for 2006-2014 WRX)
Tuning support for 4 weeks
Support for 2004-2021 STI and 2006-2014 WRX with EJ25 engine.
Don’t have an Accessport? You can Get One Here!
Our E Tuning services set a new standard in terms of customer service and performance gains. The EJ25-powered STI requires a skilled tuner with closed loop boost control, optimal fuel and ignition control, and working with fragile pistons. Our tuner Alex is experienced with this platform and in optimizing these setups based on owner’s demands turning out multiple 400+Whp stock engine setups. Our E-Tuning system works smoothly and conveniently. You will simply log your car with your own Accessport on your own time and email logs back to us. This process typically goes quickly and smoothly. Please carefully select your options to ensure accuracy.
Check our our Youtube Video describing the benefits of flex fuel tuning on your EJ25-powered Subaru!
We also offer tuning for MoTeC systems (which is available for the 2004+ STI and preferred on higher horsepower setups that require a second set of injectors) however, we ask that you contact us directly in our contact from for MoTeC support. Track support is included with any tune ordered in a specific time frame.