The BMW 7 Series 740i 326hp (G11/G12 - 2016 - 2018) produces 326bhp and 450Nm in standard form. Our Stage 1 ECU tuning file raises output to 400bhp and 580Nm, a gain of 74bhp and 130Nm, with no hardware modifications required. The file is delivered through the ByteFLASH portal and is ready to write to the vehicle.