The Mercedes GLE 250 CDI 4Matic 204hp (2015 - 2018) produces 204bhp and 500Nm in standard form. Our Stage 1 ECU tuning file raises output to 250bhp and 550Nm, a gain of 46bhp and 50Nm, with no hardware modifications required. The file is delivered through the ByteFLASH portal and is ready to write to the vehicle.