The Ford Fiesta 1.5 TDCi 120hp (MK8 - 2017 ->) produces 120bhp and 270Nm in standard form. Our Stage 1 ECU tuning file raises output to 145bhp and 320Nm, a gain of 25bhp and 50Nm, with no hardware modifications required. The file is delivered through the ByteFLASH portal and is ready to write to the vehicle.