Holden Monaro 5.7 V8 408hp ECU Tuning File

The Holden Monaro 5.7 V8 408hp (2001 - 2005) produces 408bhp and 460Nm in standard form. Our Stage 1 ECU tuning file raises output to 430bhp and 480Nm, a gain of 22bhp and 20Nm, with no hardware modifications required. The file is delivered through the ByteFlash Portal and is ready to write to the vehicle.