The Ford Fiesta 2.0i 16v ST 150hp (Mk5 - 2001 - 2008) produces 150bhp and 190Nm in standard form. Our Stage 1 ECU tuning file raises output to 165bhp and 205Nm, a gain of 15bhp and 15Nm, with no hardware modifications required. The file is delivered through the ByteFLASH portal and is ready to write to the vehicle.