The Audi A4 40 TFSI G-Tron (2.0T) 170hp (B9 - 2019 ->) produces 170bhp and 270Nm in standard form. Our Stage 1 ECU tuning file raises output to 200bhp and 320Nm, a gain of 30bhp and 50Nm, with no hardware modifications required. The file is delivered through the ByteFLASH portal and is ready to write to the vehicle.