Some people are concerned that engine remapping could cause problems with their engine. But it shouldn’t affect reliability if you use a reputable company. Remapping does put extra strain on an engine, but not a dangerous amount if it’s done properly. Remapping companies will carefully monitor the temperatures and pressures that remaps put the engine through when developing their products. Most engines are built to be capable of offering more performance than they deliver, so this added power shouldn’t cause any undue strain.

You can almost pay what you like for engine remapping. Getting your engine tuned by a professional dealer or tuner could cost as little as £500 but from there, the sky’s the limit in terms of what you can spend on more advanced parts and services.

The type of engine you have will be a determining factor in the price you pay with simple engine tuning for basic diesel or petrol engines being the most affordable and specialist systems to extract more power from high performance models being the most expensive.

You can also pay to have your engine tested so you can see the effect any ECU remapping work has had on the engine’s power and torque output. 

An engine overhaul is usually done when there are serious problems with an engine. During an overhaul, your engine getting disassembled and then evaluating the condition of internal components to identify the source of problems and replace them or repair where possible.