The Mercedes E 200 CGi 184hp (W212 - 2009 - 2013) produces 184bhp and 270Nm in standard form. Our Stage 1 ECU tuning file raises output to 220bhp and 380Nm, a gain of 36bhp and 110Nm, with no hardware modifications required. The file is delivered through the ByteFLASH portal and is ready to write to the vehicle.