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💡 This page improves over time as the community adds casting photos and confirms fitment
Axle-Back Exhaust/Muffler Assembly
This usually takes 5-15 seconds. We're pulling together fitment data,
OEM numbers, and community knowledge...
Dusting off the service manual...
💡 This page improves over time as the community adds casting photos and confirms fitment
Wiki page
5L V8 Naturally Aspirated Coyote V8 (435hp).
Quick reference
Verify specific mounting bracket differences when using aftermarket parts
Check for mid-cycle changes in components
Confirm compatibility with specific performance modifications
Context
The 2018 Ford Mustang GT, equipped with the 5.0L Coyote V8 engine, offers a thrilling driving experience, and upgrading the axle-back exhaust can enhance both performance and sound. When looking for replacement parts, you can consider OEM numbers such as JR3Z-5256-A and M-5230-M8, which are designed for compatibility with 2015-2020 Mustang GT models. During installation, inspect the mounting points for any modifications needed, especially if using aftermarket options. Common failure points include rust or damage to the muffler due to road debris, so always examine the condition of the exhaust system before replacement. This upgrade can improve exhaust flow, resulting in a more aggressive sound and slight performance gains.
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Confirmed fitment
| Year | Make | Model | Engine | Confidence |
|---|---|---|---|---|
| 2018 | Ford | Mustang | 5L V8 Naturally Aspirated Coyote V8 (435hp) | 80% |
Available parts

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