The Audi Q7 45 TDI 231hp (4M MK1 - 2015 - 2018) produces 231bhp and 500Nm in standard form. Our Stage 1 ECU tuning file raises output to 350bhp and 720Nm, a gain of 119bhp and 220Nm, with no hardware modifications required. The file is delivered through the ByteFLASH portal and is ready to write to the vehicle.