Frequently Asked Questions

ECU remapping is a software optimisation of your vehicle’s engine control unit. It improves how the engine delivers power, torque, and efficiency by refining manufacturer safety margins. No hardware changes are required.

Yes — when done correctly. We only apply custom, vehicle-specific maps that stay within safe engine and gearbox tolerances. We do not use generic “one-file-fits-all” maps.

Most vehicles take 60–90 minutes in total, including diagnostics, file reading, tuning, and final checks. Some ECUs may take slightly longer depending on access method.

Yes. We are a fully mobile service across the Midlands and come to your home or workplace. No garage visits, no waiting rooms.

We cover the entire Midlands, including Birmingham, Derby, Nottingham, Leicester, Coventry, Wolverhampton, Staffordshire, Derbyshire, Nottinghamshire, Leicestershire, Warwickshire and surrounding areas.

If you’re unsure, contact us — chances are we still cover you.

In many cases, yes. An eco or torque-optimised remap can improve fuel efficiency when driven sensibly, especially on diesel vehicles used for motorway or long-distance driving.

Absolutely. We offer:

• Stage 1 performance remaps
• Eco remaps
• Balanced setups combining power and economy

We’ll discuss how you use the vehicle and tune accordingly.

You should inform your insurer of any performance modification. Many insurers accept ECU remaps, and some charge little or no increase. It’s always best to declare it.

Yes. A standard Stage 1 or eco remap does not affect MOT compliance.

For vehicles with DPF, EGR, or AdBlue issues, legality depends on how the vehicle is used. We will always explain the implications clearly before any work is carried out.

Yes. We provide diagnostics-led solutions for DPF, EGR, and AdBlue systems where appropriate. We will always assess fault codes and vehicle condition before advising.

Yes. We remap both manual and automatic vehicles, including DSG and other modern gearboxes. Gearbox software upgrades may be recommended on higher-torque vehicles.

Yes. Your original software is backed up and can be restored if required.

A remap may affect manufacturer warranty. If your vehicle is under warranty, let us know and we’ll advise honestly on your options.

We support most petrol and diesel vehicles, including:

• Cars
• Vans
• 4x4s
• Performance models

If you’re unsure, contact us with your registration number and we’ll check compatibility.

Prices vary depending on vehicle, ECU type, and service required. You’ll always receive a clear price upfront — no hidden charges.

Yes. We offer flexible payment options on selected services. Details are provided during booking.

• Mobile service across the Midlands
• Custom, vehicle-specific tuning
• Diagnostics-first approach
• Honest advice, no pressure
• Operated by Precision Remaps UK

You can book directly online or contact us to discuss your vehicle first. We’re happy to answer questions before any commitment.