Description
Check out our Mods Guide to see dyno graphs of power outputs and for a good mod path for future modifications.
Pump Gas Typical Gains
- 300-320+ hp to the wheels!
- +50 hp (22%) increase in horsepower over stock
- +100 ft/lbs (50%) increase in torque over stock
Ethanol (E40) Typical Gains
- 320-380+ hp to the wheels!
- +95 hp (42%) 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.
If you have any questions about E-Tuning you can call us at 763-316-5882 or email us at tuning@jmautomn.com.