The BMW 6 Series GT 630D 265hp (G32 - 2017 ->) produces 265bhp and 620Nm in standard form. Our Stage 1 ECU tuning file raises output to 310bhp and 720Nm, a gain of 45bhp and 100Nm, with no hardware modifications required. The file is delivered through the ByteFLASH portal and is ready to write to the vehicle.