The Mercedes CLA 220 CDI 177hp (C117 - 2013 - 2016) produces 177bhp and 350Nm in standard form. Our Stage 1 ECU tuning file raises output to 210bhp and 450Nm, a gain of 33bhp and 100Nm, with no hardware modifications required. The file is delivered through the ByteFLASH portal and is ready to write to the vehicle.