The BMW 2 Series M240i xDrive 374hp (G42 - 2021 ->) produces 374bhp and 500Nm in standard form. Our Stage 1 ECU tuning file raises output to 420bhp and 570Nm, a gain of 46bhp and 70Nm, with no hardware modifications required. The file is delivered through the ByteFLASH portal and is ready to write to the vehicle.