The Jaguar XJ 2.7 TDV6 207hp (2003 - 2009) produces 207bhp and 435Nm in standard form. Our Stage 1 ECU tuning file raises output to 240bhp and 520Nm, a gain of 33bhp and 85Nm, with no hardware modifications required. The file is delivered through the ByteFLASH portal and is ready to write to the vehicle.