The BMW X5 4.0D 313hp (F15 - 2013 - 2018) produces 313bhp and 630Nm in standard form. Our Stage 1 ECU tuning file raises output to 365bhp and 760Nm, a gain of 52bhp and 130Nm, with no hardware modifications required. The file is delivered through the ByteFLASH portal and is ready to write to the vehicle.