An internal combustion engine is driven by different parameters of a basic configuration that allows the engine to work perfectly in all circumstances, to meet the standards of homologation in force and to offer a good reliability.
These parameters can be modified and optimized by professionals in order to obtain a performance gain without dangerously degrading the reliability or the functioning of the engine or the surrounding organs.
These modifications are regularly called: Stage 1, Stage 2, Stage 3 or deactivate EGR valve, FAP, SCR, Adblue, Limiters, etc.
With these tools you will be able to master the entire reprogramming in a few minutes. Remap your engine ECU but also that of your friends, or start a new activity, there is no limit of use.