The BMW X3 3.0D 218hp (E83 - 2004 - 2010) produces 218bhp and 500Nm in standard form. Our Stage 1 ECU tuning file raises output to 270bhp and 580Nm, a gain of 52bhp and 80Nm, with no hardware modifications required. The file is delivered through the ByteFLASH portal and is ready to write to the vehicle.