I hate to ask this but i been searching and cant come up with what i need. So if someone can tell me or tell me what to use as in search terms to help me out.

Trying to find OEM exhaust size. ID and OD (before muffler) if possible thanks

i tryed searching for these
OEM exhuast piping
OEM exhuast size
exhaust ID and OD
exhuast piping and all those combos :-(

 

2.5 inch

 

Thanks