Jaguar Land Rover's Ingenium engines are deliberately detuned from the factory. The D200, D250, and D300 diesel engines share the same 3.0L inline-six block — differing only in software calibration. The same applies to the petrol P200, P250, P300, and P400 variants. This means significant power gains are available through safe, tested ECU remapping.
D200 to D350: The Full Story
The D200 produces 200 PS and 500 Nm. The D350 produces 350 PS and 700 Nm. Both use the identical Ingenium AJ300D engine with the same turbo, injectors, and pistons. The difference is purely in the ECU calibration. Our D200 remap safely delivers 300-320 PS and 620-650 Nm — essentially D300 performance. The D250 remap achieves 340-350 PS, matching the D350. Cost: £600-£800.
D250 to D300 / D300 to D350
The D250 starts at 250 PS and 570 Nm. Our remap pushes this to 320-340 PS and 650-680 Nm. The D300 (300 PS, 650 Nm) can be remapped to 350-370 PS and 720-750 Nm, exceeding the factory D350. All calibrations are within the engine's mechanical safety margins. Cost: £600-£900.
Petrol Engine Tuning: P200 to P400
The P200 (2.0L Ingenium) can be remapped from 200 PS to 250-260 PS. The P300 (3.0L) achieves 350-370 PS. The P400 can be pushed to 450-480 PS with supporting modifications. Petrol tuning requires more careful calibration due to knock sensitivity, but the gains are significant. Cost: £500-£1,200.
TCU Tuning: Smoother Shifts, Faster Acceleration
The ZF 8-speed automatic transmission can be recalibrated to match the increased engine power. TCU tuning delivers faster shift times, more aggressive downshifts, and reduced torque converter slip. The result is a significantly more responsive drivetrain. Cost: £300-£500 (often bundled with Ecu remapping).
Dyno Testing & Safety Margins
Every map we develop is tested on a dynamometer with full data logging — air/fuel ratios, exhaust gas temperatures, knock sensors, and boost pressure. We never exceed safe thresholds. Our maps include a 12-month jlr warranty considerations against engine damage caused by the remap.
Warranty & Insurance Considerations
ECU remapping is reversible — the original calibration can be restored in 15 minutes. This means your factory jlr warranty considerations is not permanently voided. However, we recommend declaring the modification to your insurance provider. Many insurers now offer specific cover for remapped vehicles at minimal additional cost.
Which Vehicles Can Be Remapped?
All Ingenium-powered JLR vehicles: Defender 90/110/130 (D200, D250, D300), Range Rover L460 (D250, D300, D350, P360, P400), Range rover sport l461 L461 (D250, D300, D350, P400), Discovery L462 (D250, D300), F-PACE (D200, D250, D300, P250, P400), E-PACE (D150, D180), XE/XF (D200, D240).
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