The Mercedes C 180 CGI 156hp (1800cc) (W204 - 2010 - 2014) produces 156bhp and 250Nm in standard form. Our Stage 1 ECU tuning file raises output to 210bhp and 380Nm, a gain of 54bhp and 130Nm, with no hardware modifications required. The file is delivered through the ByteFLASH portal and is ready to write to the vehicle.