The BMW 5 Series 518d 150hp (G30/31 - 2016 - 2019) produces 150bhp and 350Nm in standard form. Our Stage 1 ECU tuning file raises output to 190bhp and 400Nm, a gain of 40bhp and 50Nm, with no hardware modifications required. The file is delivered through the ByteFLASH portal and is ready to write to the vehicle.