The BMW X5 xDrive M50d 400hp (G05 - 2018 ->) produces 400bhp and 760Nm in standard form. Our Stage 1 ECU tuning file raises output to 430bhp and 820Nm, a gain of 30bhp and 60Nm, with no hardware modifications required. The file is delivered through the ByteFLASH portal and is ready to write to the vehicle.