The BMW 4 Series 418i (1.5T) 136hp (F32/33 - 2013 - 2016) produces 136bhp and 220Nm in standard form. Our Stage 1 ECU tuning file raises output to 165bhp and 270Nm, a gain of 29bhp and 50Nm, with no hardware modifications required. The file is delivered through the ByteFLASH portal and is ready to write to the vehicle.