The BMW 3 Series 320D 200hp (F3x - 2011 - 2015) produces 200bhp and 420Nm in standard form. Our Stage 1 ECU tuning file raises output to 220bhp and 440Nm, a gain of 20bhp and 20Nm, with no hardware modifications required. The file is delivered through the ByteFLASH portal and is ready to write to the vehicle.