The Audi RSQ8 4.0 V8 Bi-Turbo 600hp (2020 ->) produces 600bhp and 800Nm in standard form. Our Stage 1 ECU tuning file raises output to 700bhp and 970Nm, a gain of 100bhp and 170Nm, with no hardware modifications required. The file is delivered through the ByteFLASH portal and is ready to write to the vehicle.