The Mercedes CLA 200 CGi 156hp (C117 - 2013 - 2016) produces 156bhp and 250Nm in standard form. Our Stage 1 ECU tuning file raises output to 175bhp and 310Nm, a gain of 19bhp and 60Nm, with no hardware modifications required. The file is delivered through the ByteFLASH portal and is ready to write to the vehicle.