The Mercedes C 200d 160hp (W205 - 2018 - 2021) produces 160bhp and 360Nm in standard form. Our Stage 1 ECU tuning file raises output to 180bhp and 400Nm, a gain of 20bhp and 40Nm, with no hardware modifications required. The file is delivered through the ByteFLASH portal and is ready to write to the vehicle.