The Audi A6 3.0 TDI 211hp (C6 - 2008 - 2010) produces 211bhp and 500Nm in standard form. Our Stage 1 ECU tuning file raises output to 295bhp and 600Nm, a gain of 84bhp and 100Nm, with no hardware modifications required. The file is delivered through the ByteFLASH portal and is ready to write to the vehicle.