2022 WRX Stage 1+ E40 E-Tune

2022 WRX Stage 1+ E40 E-Tune


-This E-Tune is for stock cars and any of the following modifications – Intake, Drop In Panel Air Filter, Cat back/Axle back

E40 Fuel, Requires blending a 50:50 mix of 91/93 and E85 when you refuel.


By purchasing this product, you acknowledge that this is a digital file sent via email, so there are no refunds and no warranties. You have also read How E-Tunes Work and have gone over the Pre-Tune Checklist.



Check out our Mods Guide to see dyno graphs of power outputs and for a good mod path for future modifications.

Ethanol (E40) Typical Gains

  • 320+ hp to the wheels!
  • +55 hp (25%) increase in horsepower over stock
  • +120 ft/lbs (55%) increase in torque over stock

Why E40

E40 is an easy way to run ethanol; you just put a 50:50 mix of E85 and 91/93 when you refuel. Even with varying ethanol content at the pumps of 60-85% you will always end up with the fueling being within + or – 3%. Since the 2022 WRX is full time closed loop it will correct the fueling even under full throttle so it’s always spot on.

Once purchased we will send you a confirmation email with a link to our online pre-tune form. With the pre-tune form, we make sure you have all the correct modifications to meet your power goals. Once filled out we will email you to get the E-Tuning process started.

If you have any questions about E-Tuning you can call us at 763-316-5882 or email us at