i have a 2002 LS 3400 and I am looking to get two fowmaster super40 mufflers(someone here recommended).
I do understand there will be welding and cutting of and adding pipe involved but does anyone on here know the diameter of the muffler ?
i believe it is 2.5 inch
Im ready to buy tonight.
I just want to order the right stuff

i called chevy and they said they dont know lol