The BMW 7 Series 740i 326hp (F01 - 2009 - 2015) produces 326bhp and 450Nm in standard form. Our Stage 1 ECU tuning file raises output to 370bhp and 520Nm, a gain of 44bhp and 70Nm, with no hardware modifications required. The file is delivered through the ByteFLASH portal and is ready to write to the vehicle.