The GMC Sierra 4.3 V6 195hp (2008 - 2013) produces 195bhp and 353Nm in standard form. Our Stage 1 ECU tuning file raises output to 215bhp and 370Nm, a gain of 20bhp and 17Nm, with no hardware modifications required. The file is delivered through the ByteFLASH portal and is ready to write to the vehicle.