The BMW 7 Series 740d 320hp (G11/G12 - 2016 - 2018) produces 320bhp and 680Nm in standard form. Our Stage 1 ECU tuning file raises output to 400bhp and 800Nm, a gain of 80bhp and 120Nm, with no hardware modifications required. The file is delivered through the ByteFLASH portal and is ready to write to the vehicle.