2022+ WRX Mod Guide

These are the typical results you can expect when modifying your 2022+ WRX. We started with a completely stock FA24 WRX and have kept track of power increases for all of the different parts and fuels. All of these results are standard Dyno Dynamics power numbers which are 20-25% lower than you would expect to see on a Dynojet dyno or our “Shootout” numbers. For more information on comparing dyno numbers check out our dyno page.

Our starting point was completely stock. With no tuning, no modifications, and with 91 octane fuel.

This vehicle made 225.3 HP and 219.3 FtLb TQ on our Dyno at 8 psi ramping up to about 12 psi by redline. The factory rates these cars at 271 HP and 258 FtLb TQ at the crank.

Below you find the information of our findings along with dyno graphs for comparison. If you have any questions about building your 2022+ WRX, give us a call (763) 316-5882.

Stage 1

Stage 1 vs Stock

This setup made – 260.6 HP / 324 FtLb

Peak Gains of 35 HP and 105 FtLb

This included the Cobb Accessport, Grimmspeed Drop-In Panel Filter, and Catback. We performed a custom tune on 93oct at 18psi and these are the results.

This stage we made an impressive 260.6 HP and 324 FtLb on our dyno. We saw a 35 HP or 16% increase in peak HP and 105 FtLb or 48% gain in TQ over stock. We were able to make 60+ HP over stock from 3200rpm to 5000rpm.

Stage 1 + E40

Stage 1+ E40 vs Stock

This setup made – 289.4 HP / 351 FtLb

Peak Gains of 65 HP and 132 FtLb

For this comparison, we drained the 93oct out and put in E40. This stage we made an even more impressive 289.4 HP and 351 FtLb on our dyno. We saw a 65 HP or 28% increase in peak HP and 132 FtLb or 60% gain in TQ over stock. We were able to make 80+ HP over stock from 3200rpm to 5000rpm. For comparison, this is almost exactly the same power our STG 3 STI made and all you need is an Accessport and E40 tune!

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.

Above you can see how much power the 2022 WRX makes on E40 vs a 2021 STI on E85. With just E40 and a tune the 2022 WRX has an almost identical power curve as a 2021 STI with upgraded fuel injectors, intake, downpipe, boost controller, and fuel pump.

Stage 2

Stage 2 vs Stock

This setup made – 274.7 HP / 324.0 FtLb

Peak Gains of 50 HP and 100 FtLb

These are the typical results you can expect when you have an Intake, Top Mount/Front Intercooler, (optional) Charge Pipe, and with or without a Catback Typical boost levels are 18-20psi. The graph below is tuned to 20psi on 91oct fuel.

You can expect around 50HP or 22% increase in Peak Power and 100FtLb or 50% increase in Peak Torque over stock. These mods help you make more power throughout the entire power range.

Stage 2 +E40

Stage 2+ E40 vs Stock

This setup made – 320.0 HP / 348.4 FtLb

Peak Gains of 95 HP and 129 FtLb

These are the typical results you can expect when you have an Intake, Top Mount/Front Intercooler, (optional) Charge Pipe, with or without a Catback and E40. Typical boost levels are 18-20psi. The graph below is tuned to 20psi on E40 fuel.

The graph below is making in impressive 95HP or 42% more Peak Power and 129FtLb or 59% more Torque than stock.

With E40 you can expect 14-17% more HP and 8-14% more Torque with no other changes but a tune. The graph below illustrates that by showing 45HP or 17% in peak power and 24FtLb or 8% increase in peak Torque. From about 3800rpm and up power is able to hold much better increasing to that 45hp gain by around 5500rpm.

With E40 we limit the torque to around 350ftlbs to keep the stock trans happy. This is the same torque level we have been tuning the the 2006-2014 WRX stock trans to for years with good success.

Have Questions? Call Today!

(763) 316-5882