A great Fox Body Mustang exhaust should improve performance, appearance, and sound. If your exhaust is falling behind in any of these areas, it could be time for an upgrade. There are many ways to update your 1979-1993 Mustang’s exhaust that align with any build goal.
The stock exhaust on a Fox Body is a mere 2.25” in diameter. As you improve your engine, it creates more exhaust. Without a way to exit, this extra exhaust can cause backpressure. An exhaust with a larger diameter can help. Most aftermarket exhaust systems allow for 2.5” to accommodate more power. If you’re focused on doing extreme modifications, you can even opt for a 3” exhaust system.
Fox Body Mustangs, in particular, can benefit from new long tube or shorty headers since they help exhaust exit more efficiently. This improves performance. But if performance is your main objective, a cat-back exhaust is a better option. These systems have been shown to improve a Mustang’s horsepower and torque.
To stay street legal, your Fox Body Mustang needs a catalytic converter. That doesn’t mean you’re limited to stock though. A high-flow catalytic converter is street-legal and preserves performance.
Changing out your Fox Body’s muffler for a new one lets you customize your exhaust note. If your Mustang’s performance is great but you want a more aggressive or deeper exhaust note, then this modification is for you.
Finish your exhaust overhaul with a new set of exhaust tips. These broadcast that you’ve upgraded your exhaust and let you personalize your Fox Body's appearance.