The goal is certainly to intervene to increase power and, consequently, save fuel and hours of work. Your customers may express a specific need and you will be able to satisfy it, without even having to open the ECU! By recalibrating the ECU to achieve lower consumption, also means saving hours of work: a tractor with more horsepower, for example, can add more vomers and plough the field in less time.
Same thing for the earthmover’s vehicles – recalibrate the ECU means having the opportunity to lift more weights, go faster and save hours of work. You work harder, more powerful, and efficient.