The Audi A5 1.8 TFSI 170hp (MK1 - 2007 - 2011) produces 170bhp and 250Nm in standard form. Our Stage 1 ECU tuning file raises output to 210bhp and 340Nm, a gain of 40bhp and 90Nm, with no hardware modifications required. The file is delivered through the ByteFLASH portal and is ready to write to the vehicle.