All modern vehicles are fitted with an engine control unit (ECU) which is basically a computer that controls how the engine works, similar to a human brain.
The default settings (maps) are not always the best they could be, as manufacturers who sell their cars around the world have to take into account fuel qualities, different temperatures, and laws when they program the software.
Some vehicles are limited from the factory so unrestricted models can be released at a later date for an increased price tag.
Remapping is overwriting the default software data on the vehicles ECU with new software which can be programmed to enhance the car’s overall performance.
A vehicle remap usually takes around an hour to complete changes to the programming.
Once the remapping process is successfully completed, you should notice an immediate improvement in the speed and power delivery of your car.
You can usually expect an increase in horsepower of between 30 to 50bhp and in torque of up to 100nm.
The vehicle will a become more responsive, so it will be easier to overtake, for example. You will also find that you don’t have to change gear as frequently, boosting the number of miles to the gallon.