The Audi A4 50 TDI (3.0D) 286hp (B9 - 2019 ->) produces 286bhp and 620Nm in standard form. Our Stage 1 ECU tuning file raises output to 350bhp and 720Nm, a gain of 64bhp and 100Nm, with no hardware modifications required. The file is delivered through the ByteFLASH portal and is ready to write to the vehicle.