The BMW X6 M G05 - 4.4 Bi-Turbo 600hp (All) produces 600bhp and 750Nm in standard form. Our Stage 1 ECU tuning file raises output to 700bhp and 850Nm, a gain of 100bhp and 100Nm, with no hardware modifications required. The file is delivered through the ByteFLASH portal and is ready to write to the vehicle.