The Audi A8 3.0 TDI Quattro 204hp (D4 - 2010 - 2016) produces 204bhp and 400Nm in standard form. Our Stage 1 ECU tuning file raises output to 280bhp and 625Nm, a gain of 76bhp and 225Nm, with no hardware modifications required. The file is delivered through the ByteFLASH portal and is ready to write to the vehicle.