The BMW 3 Series 320i (GPF) 184hp (G2x - 2019 ->) produces 184bhp and 290Nm in standard form. Our Stage 1 ECU tuning file raises output to 220bhp and 370Nm, a gain of 36bhp and 80Nm, with no hardware modifications required. The file is delivered through the ByteFLASH portal and is ready to write to the vehicle.