Roush

Roush 2011-2014 Ford Mustang V6 Enhanced Sound Dual Axle-Back w/ Round Tips - 421145

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SKU:
RSH421145
UPC:
844764003705
MPN:
421145
Availability:
Regularly stocked product
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$818.88
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Description

Will this axle back exhaust fit my 2011-2014 Ford Mustang?
RSH Axle Back Exhausts are engineered for a precise bolt-on fit for all 2011-2014 Ford Mustang models.

How difficult is the installation for this axle back exhaust?
Bolt-on installation provides an easy DIY experience, allowing for quick integration of increased air flow for maximized power.

RSH Axle Back Exhausts deliver maximum power gains for your 2011-2014 Ford Mustang. Featuring an all-new ROUSH open-chambered muffler, this axle back system ensures less inhibited sound and increased longevity. Experience a noticeable surge in power and throttle response with this expertly engineered axle back upgrade.

What Owners Say

Owners and enthusiasts consistently praise the Roush RSH Axle Back Exhausts for delivering a warm, deep rumble at idle that comes alive under acceleration without annoying drone at highway speeds. The sound quality stands out—described as having a "glorious" tone with that classic bubble sound muscle car fans crave. Multiple installations on both V6 and GT models confirm the exhaust performs as advertised, though owners should know cold starts are genuinely loud, which some love and others need to consider for their neighborhood situation. Some enthusiasts eventually add an H-pipe for extra volume and tone. The Roush axle-back has earned its reputation as a quality exhaust upgrade that balances aggressive sound with daily drivability.

Key Features

  • all-new ROUSH open-chambered muffler with round tips
  • less inhibited sound
  • increased longevity
  • increased air flow for maximized power
  • elimination of the in-cockpit boom
  • round tips made from high-quality 304 stainless steel

Why Choose the RSH Axle Back Exhausts

Delivers an aggressive, race-inspired exhaust note that commands attention on the street.

Achieves a smoother, more refined driving experience by eliminating unwanted cabin drone.

Provides a noticeable surge in power and throttle response for exhilarating acceleration.

Transforms your Mustang's rear end with a premium, durable, and stylish exhaust finish.

Who Is This For?

Street Performance — 8/10
Increased air flow for maximized power.

Track / Autocross — 7/10
Increased air flow for maximized power.

Drag Racing — 7/10
Increased air flow for maximized power.

Exhaust Note / Sound — 8/10
Less inhibited sound, open-chambered muffler.

Easy DIY Install — 9/10
Bolt-on install type.

Engine Performance — 8/10
Increased air flow for maximized power.

Frequently Asked Questions

Will the RSH Axle Back Exhaust fit my 2011-2014 Ford Mustang?

Confirmed fitment for your 2011-2014 Ford Mustang ensures seamless integration. This bolt-on system is specifically engineered for this generation of Mustang. Experience immediate aesthetic and auditory enhancement with confidence in its direct application.

How difficult is the installation of the RSH Axle Back Exhaust?

Achieving an easy DIY install with a score of 9 out of 10 is a key advantage of this exhaust. The bolt-on installation type simplifies the process for most enthusiasts. Enjoy a straightforward upgrade that enhances your Mustang's performance and sound.

What kind of performance increase can I expect from the RSH Axle Back Exhaust?

Expect an 8 out of 10 score for Engine Performance, driven by increased air flow for maximized power. This exhaust is designed to unlock noticeable power gains for spirited driving. Feel an exhilarating surge in acceleration and throttle response.

What is the primary benefit of the RSH Axle Back Exhaust's sound?

Delivering an aggressive, race-inspired exhaust note that commands attention is a primary benefit. This exhaust achieves an 8 out of 10 score for Exhaust Note / Sound due to its less inhibited sound profile. Command the street with a sound that truly stands out.

Additional Resources

Official Roush Product Page

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.

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Additional Information

Clearance Item:
N
MPN:
421145
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:
8/10
Easy DIY Install:
9/10
Engine Performance:
8/10
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