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6 questions found
Should I get a top-mount or front-mount intercooler for my WRX?
Top-mount for almost every street VB, including a 300whp ethanol build. A front-mount is for big-turbo cars and sustained track use, and it brings more lag, more cost and a harder install.
Updated 08/26
Read answerDo I need a tune for a turbo inlet on the 2022+ WRX?
Use the exact turbo-inlet manufacturer's guidance. PERRIN states that its 2022-2026 WRX inlet does not require ECU recalibration, but its fitment varies by intake and some combinations require trimming; any existing tune must match the whole setup.
Updated 08/26
Read answerDo I need a tune for a charge pipe on the 2022+ WRX?
It depends on the exact charge pipe and the rest of the setup. PERRIN states that its 2022-2026 WRX charge pipe does not require ECU recalibration, but fitment instructions and any existing tune still need to match all installed hardware.
Updated 08/26
Read answerDo I need a tune for an upgraded intercooler on the WRX?
Check the exact intercooler and complete setup. PERRIN states that its 2022-2026 WRX top-mount and front-mount intercoolers do not require ECU recalibration, while also directing owners to match any tune to every installed modification.
Updated 08/26
Read answerDo I need a tune for an axle-back or cat-back exhaust on the 2022+ WRX?
No. Both sit behind the catalytic converter, so neither changes what the ECU measures. Fit one and drive - no tune, no check engine light, and almost no power either.
Updated 08/26
Read answerWhich exhaust should I buy, and how bad is drone/cold start?
Buy resonated or muffled if you commute. Drone lands right at highway cruise rpm on this car and is the single most common reason people sell an exhaust at a loss.
Updated 03/26
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