The BMW 1 Series 125i 218hp (E87 - 2007 - 2011) produces 218bhp and 270Nm in standard form. Our Stage 1 ECU tuning file raises output to 250bhp and 310Nm, a gain of 32bhp and 40Nm, with no hardware modifications required. The file is delivered through the ByteFLASH portal and is ready to write to the vehicle.