The Mercedes GLA 200d (2.2D) 136hp (X156 - 2017 - 2019) produces 136bhp and 300Nm in standard form. Our Stage 1 ECU tuning file raises output to 170bhp and 380Nm, a gain of 34bhp and 80Nm, with no hardware modifications required. The file is delivered through the ByteFLASH portal and is ready to write to the vehicle.