The Audi A5 2.0 TDI CR 177hp (MK1 - 2007 - 2011) produces 177bhp and 380Nm in standard form. Our Stage 1 ECU tuning file raises output to 225bhp and 430Nm, a gain of 48bhp and 50Nm, with no hardware modifications required. The file is delivered through the ByteFLASH portal and is ready to write to the vehicle.