The Mercedes C 220 CDI 170hp (W204 - 2010 - 2014) produces 170bhp and 400Nm in standard form. Our Stage 1 ECU tuning file raises output to 205bhp and 500Nm, a gain of 35bhp and 100Nm, with no hardware modifications required. The file is delivered through the ByteFLASH portal and is ready to write to the vehicle.