Muffler, came off "tricked out" ,older Honda Civic. Looks like a Black Widow muffler. Can measures about 14" long and 6" diameter. Flared out tailpipe is about 7".. Connecting pipe is about 1+1/2 ft. Easy enough to connect to existing exhaust system. Maybe glass packed. Brackets and hooks are attached. SEE PHOTOS. CALLS are best