Roush
Roush 2011-2014 Ford Mustang V8 Enhanced Sound Dual Axle-Back w/ Round Tips - 421127
- SKU:
- RSH421127
- UPC:
- 844764003637
- MPN:
- 421127
- Availability:
- Regularly stocked product
Description
What vehicles do Roush Axle Back Exhausts fit?
Roush Axle Back Exhausts are engineered to precisely fit the 2011-2014 Ford Mustang, ensuring a perfect bolt-on installation.
Are Roush Axle Back Exhausts difficult to install?
Install Roush Axle Back Exhausts easily with the straightforward bolt-on design, connecting directly to your Mustang's factory exhaust points.
Roush Axle Back Exhausts deliver an aggressive, race-inspired sound for the 2011-2014 Ford Mustang, scoring a 9 for exhaust note excellence. Featuring an open-chambered muffler design and durable 304 stainless steel round tips, these axle-back systems offer a dramatic auditory and visual enhancement. Experience a deep, resonant tone and a show-stopping aesthetic with confident performance.
What Owners Say
Owners and enthusiasts consistently praise the Roush RSH Axle Back Exhausts for delivering an aggressive sound when accelerating while remaining drone-free at cruising speeds. The warm, deep rumble at idle earns particular appreciation, with many noting it adds character without being obnoxious to neighbors. Fitment and quality receive positive marks across V6 and GT applications, though owners acknowledge cold starts are gloriously loud—something to consider depending on your neighborhood. Some enthusiasts eventually add H-pipes for extra volume and tone, showing the system provides a solid foundation for further modifications. The Roush axle-back has earned its reputation as a reliable choice for those seeking improved sound without compromise on daily drivability.
Key Features
- open-chambered designed muffler
- round tips are made from high-quality 304 stainless steel
- round tips are finished with a chrome flashing process
- embossed with the ROUSH logo on the end
- exhaust kit mounts to the factory mounting points
- mufflers and inlet pipe are made from 409 stainless steel
Why Choose the RSH Axle Back Exhausts
Delivers an aggressive, race-inspired exhaust note that amplifies your Mustang's power.
Achieves a deep, resonant tone that transforms your driving soundtrack.
Provides a show-stopping aesthetic with polished, durable stainless steel tips.
Ensures a straightforward installation, seamlessly integrating with your factory setup.
Who Is This For?
Street Performance — 8/10
Aggressive sound amplifies Mustang's power.
Track / Autocross — 7/10
Performance-oriented design for spirited driving.
Drag Racing — 7/10
Designed for amplified exhaust note and power.
Exhaust Note / Sound — 9/10
Open-chambered muffler for aggressive, race-inspired sound.
Visual / Aesthetic Upgrade — 7/10
304 stainless steel tips with chrome flashing and logo.
Easy DIY Install — 8/10
Bolt-on install mounts to factory points.
Additional Resources
Important Notices
⚠️ Proposition 65 Warning: This product can expose you to chemicals including lead and/or other substances known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information, visit www.P65Warnings.ca.gov.
Browse More: Shop All Axle Back — Exhaust, Mufflers & Tips
Additional Information
Clearance Item: |
N |
MPN: |
421127 |
Proposition 65: |
Y |
Case Lot Quantity: |
1 |
Category: |
Exhaust, Mufflers & Tips>Axle Back |
Install Type: |
Bolt-On |
Product Level: |
Premium Performance |
Street Performance: |
8/10 |
Track / Autocross: |
7/10 |
Drag Racing: |
7/10 |
Exhaust Note / Sound: |
9/10 |
Visual / Aesthetic Upgrade: |
7/10 |
Easy DIY Install: |
8/10 |
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