Its not often I get to sit in a USDM JDM EJ20, so it was nice to sit on the left side this morning 🙂 and extract some more horsepower from the factory unit via reprogramming of the OEM ECU.
TUNING THE SUBARU EJ20 (WRX)
Its not often I get to sit in a USDM JDM EJ20, so it was nice to sit on the left side this morning 🙂 and extract some more horsepower from the factory unit via reprogramming of the OEM ECU.