The AHM 4RC exhausts are affordable but do a great job for budget enthusiasts who just need something to get the job done! The muffler is aluminum and piping chrome finished steel. Exhaust has a larger piping and header diameter over stock. Their exhausts will give you much better flow compared the stock header and pipe setup. Recommended for both stock and modified engines. This exhaust is a loud straight flow pipe but comes with a silencer/DB-killer.