The BMW 5 Series 528i 245hp (F10/11 - 2010 - 2016) produces 245bhp and 350Nm in standard form. Our Stage 1 ECU tuning file raises output to 280bhp and 430Nm, a gain of 35bhp and 80Nm, with no hardware modifications required. The file is delivered through the ByteFLASH portal and is ready to write to the vehicle.