The Jaguar XF 3.0D 300hp (2015 - 2019) produces 300bhp and 700Nm in standard form. Our Stage 1 ECU tuning file raises output to 330bhp and 750Nm, 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.