The BMW X1 2.3D 204hp (E84 - 2009 - 2012) produces 204bhp and 400Nm in standard form. Our Stage 1 ECU tuning file raises output to 260bhp and 480Nm, a gain of 56bhp and 80Nm, with no hardware modifications required. The file is delivered through the ByteFLASH portal and is ready to write to the vehicle.