economy remapping, in particular, can improve fuel economy by up to 15%. This is because the engine is able to run at a more efficient operating point, which leads to less fuel consumption. The power band is also expanded, which means that the engine produces more power at lower revs.

After remapping, your car's major components, such as the clutch, may suffer greater wear and tear. And you may need to buy higher octane fuel, which is usually more expensive.

How much does engine remapping cost? An engine remap usually costs between £200 to £400. At C R Allen & Sons, our engine remapping service starts at £250 including VAT and comes with a free engine carbon clean. If we need to manually remove your ECU, our remapping service starts at £350 including VAT.

Ecu remapping is the process of reprogramming a vehicle's engine control unit to alter performance. The benefits include increased horsepower, torque, and fuel efficiency, however, there are also potential downsides like increased wear and tear on the engine and transmission and issues with emissions.