Welcome to JFN Tuning

We offer a wide range of engine management software upgrades and remaps to help you combat ever rising fuel bills, We can increase the performance on almost every make and model of vehicle, from prestige to performance cars, as well as everyday fleet vehicles, work vans and motorhomes.

Up to 35% More Power

JFN upgrades provide up to 35% more engine power

Up to 35% More Torque

Our ECU upgrades deliver more engine torque

Quicker, Smoother Ride

Improve drivability and overall performance

Save 15% Fuel Improve Performance

All JFN engine management software upgrades are tailored to your specific needs, whether you’re looking for better fuel economy or greater performance. You can unleash the full power potential of your engine and optimise acceleration either moving heavy loads or simply for fun!

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Economy Upgrade

A JFN Tuning economy remap can save you money and improve driveability


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Ecopower Upgrade

Offers the best mix of economy and performance in virtually all turbo diesel engines.

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Ultimate Power Upgrade

Designed to fully unleash your engine’s performance potential and improve driveability.


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Suffering with poor MPG? Engine lacking power & acceleration?

If you’ve noticed a gradual decrease in engine power and performance over time, you more than likely have a blocked diesel particulate filter (DPF) or failing exhaust gas recirculation (EGR) valves. Using our DPF and EGR solution software, we can improve the fuel consumption and performance of your engine as well as saving you the hassle and inconvenience of replacing these costly units.

EGR Solution

Our Exhaust Gas Recirculation (EGR) solution software can be used to safely and correctly remove/adjust the EGR function within your ECU, without the need to physically remove the valve. (developed for off road and motorsport use)

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DPF Solution

With our  Diesel Particulate Filter (DPF) software solution your vehicle will be more responsive and economical. (developed for off road and motorsport use)

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