Question

[MossyOak3006]

I've been wondering this for a long time, maybe somebody can answer it on here. If companies like edge can write canned tunes for stock trucks that improve gas mileage and transmission shifts and so on (not talking about custom tunes here), why does the factory not put these settings on the computer when they build the truck? It seems like if Edge can write a new program, then the factory could do the same thing when the truck is on the assembly line so that all the trucks they make perform a little better