The Pontiac G6 3.9 V6 240hp (2004 - 2010) produces 240bhp and 325Nm in standard form. Our Stage 1 ECU tuning file raises output to 260bhp and 345Nm, a gain of 20bhp and 20Nm, with no hardware modifications required. The file is delivered through the ByteFLASH portal and is ready to write to the vehicle.