The 3 L engine in the Jaguar XF is at the top end of what this displacement produces — serious injection pressure, sophisticated turbocharger management, and a factory calibration that leaves room on the table by design. These engines are well-engineered enough that a careful, dyno-developed map extracts meaningful gains without asking anything the hardware isn't already built to handle.
Our dyno-developed map for the Jaguar XF adds an average of 25 kW (18%) at the wheels and 133 Nm (19%) of engine torque. That's the target band we work towards on this engine — meaningful gains you feel every time you pull out to overtake or climb a grade, without pushing the injectors, turbo or transmission anywhere near their limits.
In practical terms, that works out to around 6 fewer tanks of diesel over 40,000 km. At a typical 15,000 km annual mileage, most Jaguar XF owners save roughly 165 L and $198 per year at the pump — purely from improved combustion efficiency at part-throttle, where diesels spend most of their time.
This Jaguar XF variant ran from 2015–2018 — long enough that the factory calibration was revised more than once during that run. Before we flash anything, we identify the exact year and ECU revision, read and back up the original file, and then apply the map built for that specific version.