Modifying the exhaust is a great way to improve your sound and performance. Here’s what you should know about cat-back and axle-back exhausts.

Pick the best exhaust upgrade to improve the volume, tone, and performance of your S550 Mustang GT. This guide goes over options based on budget, style, sound, and power preferences.

There's no doubt that the factory exhaust that comes on the 2015-2017 Mustang GT is quiet, restrictive and overall boring. That's where the Roush Axle-Back from Roush Performance steps in to provide better exhaust flow with a straight-through racing style muffler and an aggressive, throaty exhaust note. Find out how to install it in this guide!

Is your Mustang’s exhaust too tame for your liking? If so, an axle-back exhaust can make your S550 sound as aggressive as it looks. Here are some of the top axle-backs for your 2015-2021 Mustang broken up into categories.