The BMW 1 Series 118i 143hp (E87 - 2007 - 2011) produces 143bhp and 190Nm in standard form. Our Stage 1 ECU tuning file raises output to 155bhp and 208Nm, a gain of 12bhp and 18Nm, with no hardware modifications required. The file is delivered through the ByteFLASH portal and is ready to write to the vehicle.