The BMW 5 Series M5 Bi-Turbo 560hp (F10/11 - 2010 - 2016) produces 560bhp and 680Nm in standard form. Our Stage 1 ECU tuning file raises output to 680bhp and 850Nm, a gain of 120bhp and 170Nm, with no hardware modifications required. The file is delivered through the ByteFLASH portal and is ready to write to the vehicle.