Warranty Terms

Rapid Remaps offers quality services by trained specialists, who will ensure that the qualities; low down tractability, reliability and fuel economy, the main qualities that attracted you to a diesel engine, are not to be compromised. When remapping a diesel, we aim to increase these qualities within the safety limits of the car. If you choose to remap or retune your diesel engine, you will notice an improvement in increased horsepower, torque, better throttle response, smoother power delivery and improved fuel economy, along with safer overtaking. We achieve these outcomes by matching parameters, boost pressure, fuel delivery and adjust the maps electronically to limit the torque, throttle response and top speed. All the information is found in the ECU, and is optimised by our trained technicians.

About us

  • Rapid Remaps is an independently owned and run remapping business & part of the Quantum Tuning Dealer Network. Operating out of the Portsmouth area and throughout the surrounding counties. Established in 2010 by Phillip Sephton and Jason Dwyer, Rapid Remaps has already made a name itself as one of the finest remapping businesses in the area, thanks to the excellent level of service on offer. By providing our customers with access to highly trained programmers and technicians with over 20 years experience in vehicle remapping, we are able to provide personalised solutions to suit the needs of each and every individual client.

    At Rapid Remaps, we are pleased to be able to be able to offer our clients fair, open and honest service, based on a policy of ethics and good communication. We promised to discuss your needs with you at every step of the process and consult with you if any additional changes need to be made, meaning that we can help you to get exactly what you need out of your remapping.

    Because the safety and satisfaction of our clients is paramount, we will only carry out work when real changes can be made, and we will never try to talk you into work that does not need doing, nor will we make any promises that we cannot keep. We will never make changes that push your vehicle beyond its capabilities. Our programmers always operate honestly, so they will advise you if no more can be done. What is more, we will always be able to restore your vehicle to its original sets, if needed.

    At Rapid Remaps, we pride ourselves on being able to offer great value for money to all of our clients. We are so confident about the quality of our workmanship, that we are able to offer a 30-day money back guarantee if you are not satisfied with the changes which have been made to your vehicle.

    Contact Rapid Remaps today, to find out exactly how we can help you to improve the functionality of your vehicle. For friendly advice, technical excellence and helpful customer service, choose Rapid Remaps for your diagnostic and retuning needs.

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Why choose us

At Rapid Remaps

Here at Rapid Remaps we are an independently owned and run business. We provide our customers with access to specially trained programmers who are trained to the highest level with over 20 years experience.
Established in 2010, by Phillip Sephton and Jason Dwyer.

We Offer

We also offer a 30 day money back guarantee and a life time warranty on our software.


At Rapid Remaps we take pride in being able to offer our customers:

  • The best and most up-to-date software for upgrading your vehicle.
  • Programmers with over 20 years of remapping experience, who understand that every vehicle is different.


  • Work which is tailored to the specific needs of each individual client, so that all of our clients can get what they need out of their vehicles.
  • Preservation of the integrity of the vehicles original programming, so as not to compromise the operation of the vehicle.
  • Modifications which will stay within your vehicle's safe operating limits.


  • Open, honest and helpful customer service, to help us to meet the needs of our customers.
  • A 30 day money back guarantee on all of our work.
  • A lifetime warranty on all of our software

what we offer


Full Diagnostic Check

We do a full system scan of your vehicle. This is to check that remapping your car, will not cause any potential issues



We download your ECU’s original program. This is then backed up in our secure archive. Then we get to work.


Keep within safe parameters

Our technicians customize the vehicles map to your desired requirements. Always operating within the vehicles safe parameters.



We install the new custom remap onto your vehicle. Using our state of the art software and hardware.


30 Day Guarantee

We let you drive your vehicle for 30 days to ensure you are happy with the end result.