Hi guys, I'm going back to stock map in my A4 2006 2.0 TFSI Quattro BUL. The question is that I have spoken to 2 people and they said different things that I cannot simply upload an old map back as there were some changes in the engine etc I don't know. Second guy just asked me for the original map and thats it. So who is right? Do you really not just upload an old pre-map map or is this how it is to be done?