The Audi A4 2.0 FSI 150hp (B6 - 2001 - 2004) produces 150bhp and 200Nm in standard form. Our Stage 1 ECU tuning file raises output to 160bhp and 215Nm, a gain of 10bhp and 15Nm, with no hardware modifications required. The file is delivered through the ByteFLASH portal and is ready to write to the vehicle.