Sorry for the late reply, we do income taxes and this is a busy time. My truck is a 01 f-250 ext cab swb single rear wheel 4x4. It is possible someone had larger tires on it and then changed them. I am thinking the way it runs someone may also have added a program to it but I am not sure. I was told that the dealer can take it back to stock for me? I would then be able to do what I want with it. Do you guys have preferences on air intake for the truck? When I brought it home it had 5 inch straight pipe for exhaust but I also have a exhaust shop so we put a magnaflow stainless 4 inch from the turbo back with a muffler. It still has the stock air box, and we have used K&N and AFE, just curious what the boards think? Again thanks for all the help and sorry for the slow replies.
