i finally have a little extra cash and i want to get a single in dual out muffler and have some tailpipes made for my 4.6 but i need to find out what size inlet the new muffler should have
the only documentation i have found is the walker exaust catalog which shows all exaust pipe on the truck as being 2.5 inch but i figured someone here should know
and as a side note if it is indeed 2.5 in can i get away with 2.5 in and dual 2.5 out or should i go with smaller tailpipes