The BMW 6 Series M6 V8 Competition Bi-turbo 600hp (F12/F13 - 2011 - 2016) produces 600bhp and 700Nm in standard form. Our Stage 1 ECU tuning file raises output to 680bhp and 850Nm, a gain of 80bhp and 150Nm, with no hardware modifications required. The file is delivered through the ByteFLASH portal and is ready to write to the vehicle.