The Mercedes GLE 500 4Matic 435hp (2015 - 2018) produces 435bhp and 700Nm in standard form. Our Stage 1 ECU tuning file raises output to 500bhp and 850Nm, a gain of 65bhp and 150Nm, with no hardware modifications required. The file is delivered through the ByteFLASH portal and is ready to write to the vehicle.