The Subaru WRX 2.0L 304hp (2007 - 2014) produces 304bhp and 422Nm in standard form. Our Stage 1 ECU tuning file raises output to 334bhp and 482Nm, a gain of 30bhp and 60Nm, with no hardware modifications required. The file is delivered through the ByteFLASH portal and is ready to write to the vehicle.