Holden Commodore 5.7 V8 306hp ECU Tuning File

The Holden Commodore 5.7 V8 306hp (1999 - 2005) produces 306bhp and 460Nm in standard form. Our Stage 1 ECU tuning file raises output to 340bhp and 500Nm, a gain of 34bhp and 40Nm, with no hardware modifications required. The file is delivered through the ByteFlash Portal and is ready to write to the vehicle.