The BMW 4 Series 418d 150hp (F32/33 - May/2016 - 2019) produces 150bhp and 320Nm in standard form. Our Stage 1 ECU tuning file raises output to 190bhp and 400Nm, a gain of 40bhp and 80Nm, with no hardware modifications required. The file is delivered through the ByteFLASH portal and is ready to write to the vehicle.