The Audi A6 2.7 TDI 180hp (C6 - 2004 - 2008) produces 180bhp and 380Nm in standard form. Our Stage 1 ECU tuning file raises output to 220bhp and 460Nm, a gain of 40bhp and 80Nm, with no hardware modifications required. The file is delivered through the ByteFLASH portal and is ready to write to the vehicle.