3" exhaust

It's extremely tight going over the rear axle on A-bodies. Pypes developed a system that is 3" X or H 3" mufflers and then 2.5" tailpipes. The system allows the engine to breath way better while not having fitment issues or spending the money for custom exhaust which if not done right is not even as good as 2.5" mandrel bent.

67-73 Mopar A-Body Hybrid 3" to 2.5" Crossmember Back w/ X-Pipe System (SMA30)

Feel free to PM me for a A-Body Only member price.