The Mercedes E 270 CDI 177hp (W211 - 2002 - 2006) produces 177bhp and 400Nm in standard form. Our Stage 1 ECU tuning file raises output to 210bhp and 480Nm, a gain of 33bhp and 80Nm, with no hardware modifications required. The file is delivered through the ByteFLASH portal and is ready to write to the vehicle.