The Holden Commodore 6.2 V8 408hp (2013 ->) produces 408bhp and 570Nm in standard form. Our Stage 1 ECU tuning file raises output to 430bhp and 590Nm, 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.