The BMW M5 3.0 D Bi-Turbo 400hp (F90 - 2017 - 2019) produces 400bhp and 760Nm in standard form. Our Stage 1 ECU tuning file raises output to 435bhp and 820Nm, a gain of 35bhp and 60Nm, with no hardware modifications required. The file is delivered through the ByteFLASH portal and is ready to write to the vehicle.