ECU Remapping & Rolling Road in Devon | EPR Tuning

Welcome to EPR Tuning



We are a class leading ECU remapping company based in North Devon

We specialise in Engine Control Unit (ECU) software recalibration for cars, vans and motorhomes. Our mission is to deliver an unmatched tuning service, offering the best in workmanship and customer satisfaction.

With a remap we can increase power, torque and improve the fuel efficiency of your vehicle!

Our Services

ECU Remapping

We extract the map data from the ECU (Engine Control Unit). The file is then carefully and professionally custom written for your vehicle. This involves adjusting numerous parameters within the map such as fuel pressure, boost pressure, ignition advance, throttle pedal control, amongst others. Our tuning calibrations are developed in-house on our Rolling Road. This allows us to deliver the highest quality custom remapping service, resulting in up to 35% more power and torque and up to 20% more MPG.

OBD / Bench Tuning

ECU Remapping involves the modification of the operating parameters within the ECU’s program which is also known as the β€˜map’. In most cases, the map stored within the ECU can be accessed via the on-board diagnostics port (OBD). However, in some cases the ECU has to be removed, the casing opened and specialist tools used to read the map directly from the ECU’s processing board. We adjust the parameters within the original map to achieve the best performance, fuel economy or a blend of both.

Gearbox Tuning

If you are looking for even more from your vehicle fitted with an automatic transmission, a gearbox TCU (Transmission Control Unit) remap perfectly complements our ECU Remapping service. A TCU remap provides many benefits from increased power and torque by relaxing the gearbox torque limiters, faster and smoother gear changes, improved low speed and off the line response and even improved fuel efficiency on some models. We currently support DSG Gearbox Tuning and ZF Gearbox Tuning for BMW’s.

Happy customers = our success!

  • review rating 5  Visited EPR tuning this week and handed my Mini Cooper S over to Carlos. Amazing service and went out of his way to fit me in. Fell in love with my car all over again, drives Incredible and has improved all aspects. Even managed to have a great tidy up with Matt at gleaming motors at the same time. Great set up, great service, highly recommended.

    thumb Sam Bye

    review rating 5  I bought a Van which had been mapped, and it was terrible. Power delivery wasn’t smooth and it drank fuel. Spoke to Carlos and he did a live run and it showed the problems. I opted to revert to a standard map as I was looking for better fuel economy and a smoother drive. Carlos remapped the van and it was a remarkable difference. I now get twice the range from a tank and I’m not down on power. The van runs so smoothly and gives twice the MPG without feeling any less powerful. I would highly recommend his work. Very knowledgeable and a professional service.

    thumb Mark Fairchild

    review rating 5  Lovely guy, incredibly professional and knowledgeable. Very happy to discuss the work and answer any questions-- thoroughly reassuring and will certainly be returning in the future. Thanks Carlos!

    thumb Harry Cloake
  • review rating 5  Great work and defitnately noticed the difference. Just brought the car to life. Great Job EPR tuning !

    thumb Stephen Butler-Jones

    review rating 5  EPR Tuning re-mapped my vehicle and they made the whole process very simple indeed from start to finish. The results are as promised in terms of fuel efficiency and engine performance. Thank you EPR Tuning!

    thumb Jon Gifford

    review rating 5  Left my car in the safe hands of Carlos. Love how my car now feels and sounds, will return in the future when mods are made! Awesome work thank you!

    thumb Samantha Kotcombas

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We are happy to provide you with first class service.