Hi all, new to the forums. So forgive me if my question is beating a dead horse or posted in the wrong area. Currently installing the hddiesel tune and delete on 2015 eco diesel. For those who have used this tune, if a repair is needed and u switch back to stock tune, can the dealer ‘flash’ the computer. I was told that once the tune was installed, it can never be ‘flashed’. If it is then a new tune is required. Does this mean the truck once tuned can never be updated? Also, if u tune back to stock, do u get codes for the deleted egr and dog system? Just trying to educate myself in case something happens on the road and I don’t have the time to ask these questions. Thanks.