don't even sweat it. my buddy had a basemap made for a y8 that was suppose to be on 9psi. well he has a ebay wastegate and it leaked to 12psi. He was doing about 145mph down 81 in 4th gear at like 5k rpm, to the floor and the car still ran fine. all on a basemap. stupid? Yes but you will survive on a basemap to get it tuned.