Cat-back exhaust kits are a great way to kick off your exhaust rebuild. These 2021 Mustang kits will replace all of the exhaust piping from the outlet of the catalytic converter to the end of the tailpipe. The upgraded design of aftermarket cat-back kits provides decent performance gains in addition to a unique exhaust tone. Axle-Back exhaust kits are similar to Cat-Back setups, minus a new mid-pipe. These options are less expensive and focus more on sound than performance.

If you're looking to truly elevate your 2021 Mustang GT exhaust system, a set of headers will do the trick. We offer both long and short tube headers to match all different styles of driving. Both types of headers offer performance benefits, though long tube headers will generally offer bigger gains than shorty headers.

From new gaskets and hardware to performance mufflers and complete kits, we're stocked with options from the best of the best brands like Ford Performance, Flowmaster, and Borla.