The Audi A6 3.0 TDI FWD 204hp (C7 - 2011 - 2018) produces 204bhp and 400Nm in standard form. Our Stage 1 ECU tuning file raises output to 270bhp and 600Nm, a gain of 66bhp and 200Nm, with no hardware modifications required. The file is delivered through the ByteFLASH portal and is ready to write to the vehicle.