The Audi A4 30 TDI (2.0D) 122hp (B9 - 2019 ->) produces 122bhp and 270Nm in standard form. Our Stage 1 ECU tuning file raises output to 185bhp and 410Nm, a gain of 63bhp and 140Nm, with no hardware modifications required. The file is delivered through the ByteFLASH portal and is ready to write to the vehicle.