2003 - 2005
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Order This File Ask a QuestionThe Subaru Impreza 2.0T WRX STi 265hp (2003 - 2005) produces 265bhp and 340Nm in standard form. Our Stage 1 ECU tuning file raises output to 295bhp and 400Nm, 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.