This is incorrect. You cannot run those parts without a tune. He is going to get the same codes (or worse) on a factory map. The car must be tuned properly to correct the problem.Did you put all the modifications on and upload the base map in the same day, or did you install the bolt ons and run the car at all before the base map? Try going back to the factory tune and see if there are any codes. If there are codes on the factory tune then it's not the base map and you should double check everything you physically installed.
Nope. The car will run like hot garbage (if at all) with those parts on the factory tune. End of story. There's no other way about it.From what I understand, and by no means am I a tuner, there won’t be any sort of gains from running the factory tune with bolt on modifications. I wouldn’t think that attempting to narrow it down by doing this would cause any sort of real damage. ESP if he doesn’t go WOT. If there is already a lean condition then that in and of itself is dangerous to run the car on. So at the very least, the base map that is causing the lean condition should be removed right away no? Wouldn’t the ecm try to compensate with the increased air & exhaust flow by dumping more fuel causing a rich condition? Safer to be rich than lean.