2011-14 Ford Mustang 3.7L Roush Exhaust Kit w/ Square Tips V6 - S197

Mustang Roush Exhaust Kit w/ Square Tips (11-14) 3.7L

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Mustang Roush Exhaust Kit w/ Square Tips (11-14) 3.7L
  • Roush Mustang Exhaust Kit w/ Square Tips (11-14) V6 3.7L 421144
  • Roush Mustang Exhaust Kit w/ Square Tips (11-14) V6 3.7L 421144

Add more power & sound to your 3.7L S197 with an 11-14 Mustang V6 Roush exhaust kit w/ square tips.

Item #RSH-421144

Everyday Low Price: $498.99

Ships by Monday, June 01

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  • Upgraded Aggressive Sound Tone Volume
  • Fits Roush Rear Valance


  • 409 Stainless Steel Pipes And Muffler
  • Unique Open-Chambered Design
  • 304 Stainless Steel Exhaust Tips With Chrome Flashing
  • Does Not Negatively Affect Emissions
  • Provides Higher Air Flow

What's in the Box

  • (2) Axle-Back Muffler W/ Hangers
  • (2) Polished Square Tips
  • (4) Band Clamps

Made in the USA

Product Description

Give your 2011-14 V6 Mustang the aggressive sound it deserves . This innovative new exhaust system from ROUSH features a hollow muffler chamber, as opposed to conventional fiberglass-packing. The result is a unique and less inhibited sound, increased air flow, and increased longevity (there is no fiberglass that will break-down with time). Another great feature of this system is the lack of the in-cockpit boom normally found with performance exhaust systems at cruising speeds.

Not only does this exhaust sound good, it looks good as well. The square tips are made from high-quality 304 stainless steel and are finished with a chrome flashing process. Conventional chrome plating uses layers of bonded chemicals to achieve its shiny appearance, which are susceptible to cracking and flaking especially when exposed to high temperatures (like exhaust). However, the chrome flashing used in this system is bonded micro-porously to the metal surface, and is as a result impervious to cracking from localized damage. This method of chroming is also resistant to heat color change.

As you would expect, the installation of this system is quick and easy. The exhaust uses the factory hanger mountings, so you don't have to fabricate your own. This kit also features new OE-quality spherical clamps for a better fit. With the square tip design, you must use the Roush rear valence.

Product Videos

Roush Mustang Rear Valance Kit Installation (S197 2013-14 Rear Diffuser)

Check out our YouTube channel for even more tech tips, installation videos, how-tos, and more. The best place to go for anything Mustang related!

Product Reviews

Community Q&A (1)

Vehicle Applications

Ford Mustang - 2011 (11) - 2012 (12) - 2013 (13) - 2014 (14)

About This Brand

Roush - The Art of Performance Engineering
ROUSH Performance is the first specialty-vehicle company to combine race-proven technologies with advanced automotive engineering. The result, a unique mix of street car and race car...Is a ROUSH car. Or more specifically, a ROUSH Mustang or F-150 pickup with styling, performance, and handling characteristics derived from the racetrack and modified for street legal usage. The vehicles and components produced by ROUSH Performance are imprinted with Jack Roush's vision, passion for performance, and commitment to excellence. He personally approves the design, engineering, fit, finish and overall performance of each package, ensuring that his personal standards are met prior to production and product release. Many of these products are designed by the same engineering group that has helped Roush Racing become the winningest Ford racing team in history.

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