The Mercedes E 220 CDI BlueTEC 163hp (W212 - 2013 - 2016) produces 163bhp and 400Nm in standard form. Our Stage 1 ECU tuning file raises output to 250bhp and 500Nm, a gain of 87bhp and 100Nm, with no hardware modifications required. The file is delivered through the ByteFLASH portal and is ready to write to the vehicle.