The Chevrolet Cobalt SS 2.0 Supercharged 205hp (2005 - 2007) produces 205bhp and 271Nm in standard form. Our Stage 1 ECU tuning file raises output to 240bhp and 305Nm, a gain of 35bhp and 34Nm, with no hardware modifications required. The file is delivered through the ByteFLASH portal and is ready to write to the vehicle.