The Audi SQ7 4.0 TDI Bi-Turbo 435hp (4M - 2016 ->) produces 435bhp and 900Nm in standard form. Our Stage 1 ECU tuning file raises output to 500bhp and 1000Nm, a gain of 65bhp and 100Nm, with no hardware modifications required. The file is delivered through the ByteFLASH portal and is ready to write to the vehicle.