The Audi TT 2.0 TDI 170hp (2006 - 2014 ( 8J )) produces 170bhp and 350Nm in standard form. Our Stage 1 ECU tuning file raises output to 205bhp and 430Nm, a gain of 35bhp and 80Nm, with no hardware modifications required. The file is delivered through the ByteFLASH portal and is ready to write to the vehicle.