30" Long Case Glass-Packed Muffler, 4" Diam. Case, 2-1/2" Diam. Core, 2-1/2" Inlet & Outlet
Does this sound like what you have? they have dif sizes. I found this in the JCWhitney catalog. It just seems a lil to cheap i guess. But this and some 2 1/2 piping is what you have?
the link i found it on
http://www.jcwhitney.com/webapp/wcs/...atalogId=10101