If you think that your car may not be performing at its optimal levels, you may be thinking about remapping. But what is remapping, and what are the benefits and downsides?
Also known as engine mapping or chip tuning, remapping is becoming increasingly popular. Most modern cars have an ECU – Engine Control Unit, which controls its performance, including turbo boost power and fuel injection. These units are set by manufacturers to allow for safe and efficient performance, including emissions regulations, for different countries. When an engine is remapped, the ECU software is changed so that the vehicle can perform better. This usually means more power, more torque, and better fuel efficiency. This may all sound great, but there are some considerations.
The pros of remapping
- More power and torque – one of the primary reasons drivers opt for remapping is to get more power and to make the car or van feel more responsive.
- More fuel efficiency – remapping can optimise mpg, especially for diesels, by refining the fuel injection and air-to-fuel ratios.
- A cost-effective way of improving performance – remapping costs between £200 and £500 so is a relatively low cost way of improving driving experience and efficiency.
- Customisation for your needs – if you are planning on using your vehicle for towing, e.g. a caravan, you can tailor your remapping to make it easier to tow heavy loads without placing additional strain on your engine.
The cons of remapping
- Increased wear and tear – there is a possibility that remapping could place additional stress on the engine, transmission, and turbocharger if it is not done properly.
- Impact on manufacturer warranty and insurance – if your vehicle is new, it is likely that your manufacturer will void the warranty if you get it remapped. Insurers may also refuse to insure you or increase your premium as a result of remapping (but make sure that you tell them or your cover may be invalid).
- Potential issues with emissions and MOT – if you increase the power of a vehicle, you are probably going to increase emissions, too.
- Reduced fuel economy – while remapping should improve your MPG, thanks to improved acceleration and increased torque it is possible that you will start to drive faster, which could have the opposite effect.
As with any modifications, the risks associated with remapping are far greater if you choose the wrong garage. Make sure that you thoroughly research your options before you commit. All of the garages on Trust A Garage have been vetted by us and approved by customers, so you can book your remapping with complete peace of mind. If you have recommendations for remapping services near you, let us know on Facebook or X, or head to their Trust A Trader profile and leave an honest review.