The Audi A5 2.7 TDI 163hp (MK1 - 2007 - 2011) produces 163bhp and 400Nm in standard form. Our Stage 1 ECU tuning file raises output to 235bhp and 480Nm, a gain of 72bhp and 80Nm, with no hardware modifications required. The file is delivered through the ByteFLASH portal and is ready to write to the vehicle.