If this Ecutek is coming from us, its's coming from our in house tuner, who does nothing but tune cars and will tailor this tune to your car and your exact mod list and logs.
Stages 1, 2, and 3 are all marketing terms. If things went they way I wished there would be no "stages" but only custom tunes to fit the extract specifications. Unfortunately too many companies have muddied the waters with stages so most are forced to follow.
Rest assured we only tune to the specific car and the parts installed.