Today's engines are managed by a single ECU mother control unit that detects information via the sensors in charge in the engine. To increase the power of the car, two different directions can be traveled:
1. optimize the power through an additional Proracing device that modifies in real time all the parameters to improve performance in a dynamic and adjustable way.
2. Reprogram the ECU motherboard via serial interface with PC, in some cases opening it, unsoldering the components. (This erases all original data in memory, overwriting it, sometimes disabling error codes.)