I got a quote for a flowmaster 40 muffler, single in dual out with 3 inch chrome tips on my 93 silverado with the 350 engine. The guy quoted me around 330 bucks. I know I am missing a few hangers though. The Y pipe is still in good shape and the only thing it needs done is the bolts on the manifold that connect to the Y pipe need to be changed cuz a nut is missing on one and there very rusted so might as well put on new bolts.

Do they install new hangers and gaskets when they put on the new exhaust?

 

yes the shop u take it to will do so (if not get them to)