The BMW 3 Series 316i 122hp (E90/E91 - 2005 - 2010) produces 122bhp and 160Nm in standard form. Our Stage 1 ECU tuning file raises output to 136bhp and 177Nm, a gain of 14bhp and 17Nm, with no hardware modifications required. The file is delivered through the ByteFLASH portal and is ready to write to the vehicle.