The Pontiac G5 2.4i 173hp (2006 - 2010) produces 173bhp and 221Nm in standard form. Our Stage 1 ECU tuning file raises output to 195bhp and 245Nm, a gain of 22bhp and 24Nm, with no hardware modifications required. The file is delivered through the ByteFLASH portal and is ready to write to the vehicle.