The BMW 3 Series 318D 122hp (E90/E91 - 2005 - 2010) produces 122bhp and 280Nm in standard form. Our Stage 1 ECU tuning file raises output to 155bhp and 340Nm, a gain of 33bhp and 60Nm, with no hardware modifications required. The file is delivered through the ByteFLASH portal and is ready to write to the vehicle.