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Roush Cat-Back Exhaust (18-19 GT w/o Active Exhaust)

Market Price $1,149.99 You Save 4% ($50.00)
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  • Item 404875

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    Features, Video & Details

    • Race-Inspired Sound, Look and Performance
    • Made From 304 Stainless Steel
    • Mandrel-Bent Tubing
    • Improves Airflow
    • Includes 2 High-Flow Mufflers, Integrated Mid-Pipes, X-Pipe, Polished 304 Stainless Steel Tips
    • Fairly Easy Installation
    • Fits 2018-2019 Mustang GT Without Active Exhaust

    Review & Installation Video

    Review & Install Video

    Roush Experience. Get your 2018-2019 Mustang some serious race-inspired voice, looks and performance with the Roush Cat-Back Exhaust. Your GT will scream power wherever you go, but you'll also see improvements in all facets of your performance.

    Construction and Effect. The Roush Cat-Back Exhaust is made from 304 stainless steel, which is used for strength and corrosion-resistance. The mandrel-bent tubing is utilized for its ability to improve airflow, which reduces back pressure in your Mustang and brings you increases in performance.

    What You Get. This Roush Cat-Back Exhaust features dual high-flow mufflers, integrated mid-pipes, an x-pipe and polished 304 stainless steel tips. All of these features combine to enhance your Mustang's sound and look, on top of the improvements in the exhaust.

    Installation. Don't feel threatened by the scope of installing this Roush Cat-Back Exhaust. With basic hand tools, you can get this exhaust in your Mustang in about 90 minutes, no matter your mechanical skill level.

    Application. The Roush Cat-Back Exhaust is designed for 2018-2019 Mustang GTs without Active Exhausts.

    Fitment: 2018 2019 Details

    MPN# 422093

    CA Residents: WARNING: Cancer and Reproductive Harm -

    What's in the Box
    • (2) High-Flow Mufflers
    • (1) X-Pipe
    • (2) Integrated Mid-Pipes
    • (2) Stainless Steel Tips
    • Installation Hardware
    Installation Info
    Will it fit my Mustang?

      Customer Photos

        Questions & Answers (3)

        3 Top Rated Questions

        How much does this system weigh?

        • This exhaust weighs 27 pounds.

        Helpful (0)

        Will this work on the 2018 GT convertible w/o active exhaust?

        • This will work on your car yes.

        Helpful (0)

        Is this Louder than the Corsa Extreme?

        • Sound would be a subjective measure. Both exhausts are very loud. We recommend listening to sound clips of both to hear what you think is louder.

        Helpful (0)
        Post Your Question

          Customer Reviews (7) Write a Review

          Overall Rating 5

          out of 5 stars

          Installation Time:Afternoon

          Installation Cost:0-$100

          • Loudness / Volume 4.714286 4.7
          • Exhaust Note 5 5
          • Fit & Finish 4.857143 4.9
          • Bang For Your Buck 5 5

          • 5/5

            Installation Time: Less than 1 Hour

            June 02, 2019


            This is hands down the most aggressive, yet livable catback for my 18 GT PP1. I'm a Roush guy myself, had a catback on my 2010 GT, but for 2018, Roush took it to another level. Everything was as described and perfect


            Year: 2018 Submodel: GT

            Helpful (3)

          • 5/5

            Installation Time: Less than 1 Hour

            May 20, 2019

            Excellent addition to any 18-19 S550

            Bought this for my wife for her 18 S550. I was a little skeptical, but it was the sound she wanted. Install took under an hour on jack stands. on first start up, the cold start is brutally loud. Even louder than my S197 with LTH and full borla exhaust. It does calm down a bit after it's warm. Has a great sound and no drone. I would recommend to anyone that is looking for a quality system with no drone.


            Year: 2018 Submodel: GT

            Helpful (2)

          • 5/5

            Installation Time: Shop Install

            April 26, 2019

            Nice Sound

            Best part of this exhaust is when you're cruising there is zero drone and you can comfortably listen to music, etc. However, it's borderline waking up my neighbors when cold cranking and gets loud in a hurry when you are driving aggressively. Under normal driving it definitely is noticeable and has a great rasp to it. I have zero regrets and for the price it's a no brainer that I would buy this again.


            Year: 2019 Submodel: GT

            Helpful (1)

          • 5/5

            Installation Time: Afternoon

            March 31, 2019

            Really good

            These have a really nice and raspy tone. Every morning when I turn the car on the cold start they put a smile on my face. This exhaust is very loud, but you can still cruise without making too much noise. And there is no drone from this exhaust.


            Year: 2018 Submodel: GT

            Helpful (1)

          • 5/5

            Installation Time: Afternoon

            February 18, 2019

            It’s worth it

            Took about 3-4 hours to install, and it sounds great.


            Year: 2018 Submodel: GT

            Helpful (1)

          • 5/5

            Installation Time: Less than 1 Hour

            December 26, 2018

            Love roush cat back

            Best sound worth the money very loud beautiful sound


            Year: 2018 Submodel: GT

            Helpful (2)

          • 5/5

            Installation Time: Shop Install

            Installation Cost: 0-$100

            August 25, 2018

            Unique exhaust sound

            This has got to be one of the best exhaust I've heard on a mustang. I love a car with a good exhaust system but this is just about the best sounding exhaust for a mustang period. The exhaust note changes as u drive so if you are light on the pedal its gonna give you a nice deep grumble. If you accelerate a little quicker you get a higher pitched sound but still deep. If your just cruising along you almost can't hear it. When you down shift you get this deep growl. This is an amazing exhaust and I can say that you will turn heads and get compliments everywhere you go.


            Year: 2018 Submodel: GT

            Helpful (14)

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