The 1.6 L 4-cylinder in the Ford Fiesta is a solid, mid-range diesel — enough torque to be genuinely useful, calibrated cautiously enough to survive every market where the manufacturer sells it. The result is a factory map that's deliberately muted. Most of the real-world gain we make on a remap comes from recovering that headroom safely.
Our dyno-developed map for the Ford Fiesta adds an average of 13 kW (25%) at the wheels and 32 Nm (16%) of engine torque. At this level the car genuinely changes character — overtaking on single-lane highways stops being a commitment, and the mid-range pull from around 1,500 to 3,000 rpm is transformed. You notice it most on the highway on-ramp and in the first third of an overtake.
In practical terms, that works out to around 5 fewer tanks of diesel over 40,000 km. At a typical 15,000 km annual mileage, most Ford Fiesta owners save roughly 132 L and $238 per year at the pump — purely from improved combustion efficiency at part-throttle, where diesels spend most of their time.
This Ford Fiesta variant ran from 2010–2012. The factory calibration changed very little across that production window; we have the original file for each year and always confirm which one matches the car in front of us before we start.
Ford Duratorq
The Duratorq family — 2.2 / 3.2 in the Ranger / Everest — is the workhorse of the Ford diesel range. Our maps target pure mid-range torque, which is exactly what these vehicles need for towing and load-carrying.