2005-09 Ford Mustang 4.6L Roush Extreme Performance Exhaust Kit GT - S197

Mustang Roush Extreme Performance Exhaust Kit (05-09) 4.6L

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Mustang Roush Extreme Performance Exhaust Kit (05-09) 4.6L

Add power & performance to your 2005-2009 Mustang GT with this Roush extreme performance exhaust kit.

Item #RSH-403936

Everyday Low Price: $575.99

In Stock

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  • Generates Deep Off-Road Exhaust Tone
  • Increases Horsepower & Torque
  • Increases Fuel Efficiency


  • No In-Vehicle Exhaust Drone
  • Manufactured Using CNC Bending To Create Smooth Mandrel Bends
  • Made From 2.5" Diameter Stainless Steel Tubing
  • Includes 4" Diameter Polished 304 Stainless Tips
  • Includes OEM Clamps
  • No Welding Or Cutting Required

What's in the Box

  • (1) LH Mid-pipe With Resonator
  • (1) RH Mid-Pipe With Resonator
  • (1) LH Tailpipe With Tip
  • (1) RH Tailpipe With Tip
  • (2) 2.5" Band Clamp
  • Installation Instructions

Made in the USA

Product Description

Make your presence known with the ROUSH® 2005-2009 Ford Mustang Extreme Performance Exhaust Kit. Not only does this kit generate a mean sound, it also increases the horsepower and torque of your 2005-2009. The increased power is generated due to the higher flow system as compared to a conventional Mustang exhaust system. Yet another benefit of this high flow system is that it improves fuel efficiency, as the engine runs into less air resistance to do its work. Though the ROUSH Extreme Performance Mustang Exhaust Kit creates more sound outside your Mustang, it doesn't create the typical off-road exhaust drone inside. This is made possible because sound is more effectively directed backward through the exhaust system and out through the rear of the Mustang. This 2005-2009 Roush Mustang Extreme Performance Exhaust kit comes complete with installation instructions and are ready to bolt on your car.

See what our customers have to say about this product!
Check out customer reviews and questions.

Community Q&A (3)

Product Reviews (4)

out of 5 stars
5 stars
4 reviews
5 stars    3
4 stars    1
3 stars    0
2 stars    0
1 star    0

4 of 4 REVIEWS
4 of 4 REVIEWS

5 Stars   Muscle Car Sound
By on 6/19/2014
I just received my Roush cat back exhaust and I must say it SOUNDS INCREDIBLE! As soon as I turned my key I noticed a huge incredible sound. I have already received several great complements on the sound and deep muscle car tone. BEST EXHAUST AROUND!! Thanks Latemodel Restoration for great service and fast shipment!!

Yes, I would recommend this item to a friend!

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5 Stars   Great Exhaust Tone!
By on 6/30/2014
I've had this exhaust for about 3 weeks and all I can say is UNBELIEVABLE! This is the best catback exhaust system on the market hands down!! I receive complements everywhere I go!! Thanks Latemodel Restoration & ROUSH!!

Yes, I would recommend this item to a friend!

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5 Stars   Perfect exhaust
By on 9/30/2014
I made one hell of a decision buying this catback. One of the loudest I've heard, and there's no inside drone. Tons of compliments on the new setup since I got it installed.

Yes, I would recommend this item to a friend!

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4 Stars   Sounds good
By on 11/26/2014
These were easy to install once I found a lift to get them over the axle. Not very loud with stock cats, but they do sound good. I had to put some washer under the right side hanger to get the tail pipes even. The only reason I didn't give five stars is because I thought they would be louder based on other reviews I read.

Yes, I would recommend this item to a friend!

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Vehicle Applications

Ford Mustang - 2005 (05) - 2006 (06) - 2007 (07) - 2008 (08) - 2009 (09)

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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