removed the 08 exhaust and installed one from an 03. havent touched the computer. still runs fine besides the computer being pissed off. what the time line of events before it really gets pissed and gives up. did some searching and didnt really find anything.

Mine did it in about a week. Actuly mine did it when I had 2 four wheelers on a trailer and just pulled into the deer lease and had to kick it in 4 wheel drive to get thru the mud. Needless to say, in limp mode, it wont make it thru ANYTHING

Just buy a quadzilla or edge race and make your truck happy :)

I think your first regen your truck will have some issues

i have efi, but needed a license and a tune....all better. ran almost a week with no problems

i don't think you will have any real problems with power limiting for 3-4 weeks. but if you clear the codes ever once and a while you will have a little longer.