The BMW 2 Series 228i 245hp (F2x - 2013 - 2020) produces 245bhp and 350Nm in standard form. Our Stage 1 ECU tuning file raises output to 290bhp and 450Nm, a gain of 45bhp and 100Nm, with no hardware modifications required. The file is delivered through the ByteFLASH portal and is ready to write to the vehicle.