The BMW 5 Series 535D 272hp (E60/61 - 2003 - 2010) produces 272bhp and 560Nm in standard form. Our Stage 1 ECU tuning file raises output to 320bhp and 660Nm, a gain of 48bhp and 100Nm, with no hardware modifications required. The file is delivered through the ByteFLASH portal and is ready to write to the vehicle.