Ranic Motors | 020 84729988 | ECU Remapping
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Ranic Motors (part of Topgear Tuning)

Topgear Tuning is forefront in the remapping industry.

We use and supply state of the art equipment, continuous software development and the talent of our experienced file writing team to provide quality, fully warranted ECU Remaps for your vehicle. The result is increased performance and increased economy. To date we have successfully remapped over 20,000 engines via our approved network of 270 UK outlets.

In fact, ex racing driver Perry McCarthy, the original ‘Stig’ from the Top Gear TV show, was so impressed – he bought the company. When it comes to cars, engines and performance, racing drivers are notoriously difficult to please, so we are proud we passed the test!

Please note we are not owned by or in any way connected with the British Broadcasting Corporation or the Top Gear TV show or any of its characters including ‘The Stig’.


What is ECU Remapping?

The practice of remapping is to first read the ECU’s processor of a vehicle’s standard map and then to adjust various parameters within that map. As an example: fuel pressure, boost pressure (turbocharged engines) and ignition advance. When carried out correctly, this process will successfully unlock engine performance.

ECU programming will improve power and torque figures, increase throttle response and widen the power-band, resulting in a more flexible engine and a much sharper drive.

Another major benefit of remapping is a reduction in fuel consumption. Extra torque at the bottom of the rev range requires less throttle input on acceleration and when maintaining steady speeds.  The vehicle can also be driven in a higher gear at slower speeds, thus reducing revs, and this also applies to driving when fully loaded, towing or driving through elevation changes

The obvious question of course is: ‘Why don’t carmakers fine-tune their own ECU’s?’ Well, large manufacturers sell vehicles across various markets that have extreme climates, different tax/emission regulations and diverse fuel quality. They have to take all these factors in to consideration and therefore need to make substantial compromises in their tuning set-up. However, without facing such restrictions, Topgear Tuning is more precise; we can safely optimise outputs thus unlocking engine potential.

ECU Remapping is a safe process. It is just allowing the engine to perform as it can and should do without the compromises


  • Improved fuel economy
  • Increased horsepower
  • Increased torque
  • Better throttle response
  • Smoother power delivery
  • Safer overtaking