The BMW 7 Series 730D 231hp (E65 - 2002 - 2008) produces 231bhp and 520Nm in standard form. Our Stage 1 ECU tuning file raises output to 280bhp and 620Nm, a gain of 49bhp and 100Nm, with no hardware modifications required. The file is delivered through the ByteFLASH portal and is ready to write to the vehicle.