When your car comes out of the factory, it’s ECU, and by extension engine calibration, is set to deliver performance in a wide variety of operating environments and allow extreme tolerances. In simple words, your car is not optimised for your particular driving style or your location. ECU remapping helps in making adjustments over these factory settings in the car’s computer, tweaks the parameters and tables to meet your desired outputs and improving performance or economy in the process.

Most of the new vehicles are being sold in the market with the de-tuned engine to keep variations of power levels within their product range, while still using the same base engine.