The BMW 6 Series M6 V8 Bi-turbo 560hp (F12/F13 - 2011 - 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.