The Mercedes C 350 e Hybrid 279hp (W205 - 2014 - 2018) produces 279bhp and 600Nm in standard form. Our Stage 1 ECU tuning file raises output to 325bhp and 670Nm, a gain of 46bhp and 70Nm, with no hardware modifications required. The file is delivered through the ByteFLASH portal and is ready to write to the vehicle.