The Mercedes GLE 63 AMG S V8 BiTurbo 612hp (2019 ->) produces 612bhp and 850Nm in standard form. Our Stage 1 ECU tuning file raises output to 690bhp and 950Nm, a gain of 78bhp and 100Nm, with no hardware modifications required. The file is delivered through the ByteFLASH portal and is ready to write to the vehicle.