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Roush Cat-Back Exhaust with Black Tips (15-20 EcoBoost w/o Active Exhaust)

Item 406654
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Market Price $1,322.49 You Save 13% ($172.50)
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$1,149.99 (kit)

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      Review & Installation Video

      Product Information

      Features, Description, Reviews, Q&A, Specs & Installation


      • Race-Inspired, Aggressive Exhaust Tones
      • Provides Unrestricted Airflow for Better Breathability
      • Roush-Designed High-Flow Mufflers
      • Integrated Y-Pipe for Increased Flow
      • Mandrel-Bent Piping for Consistent Flow
      • Made From 304 Stainless Steel Materials
      • Exclusive 4-Inch Black Tips Embossed With Roush Logo
      • Uses OEM Hangers and Mounting Points
      • Compatible With Factory Rear Valance
      • No-Welding Installation
      • Limited 3-Year or 36,000-Mile Warranty
      • Manufactured in the USA
      • Not Compatible with Active Exhaust
      • Fits 2015-2020 Ford Mustang EcoBoost Models Without Active Exhausts


      Enjoy Race-Inspired Tones. Enjoy an upgraded sound for your Ford Mustang with this Roush Cat-Back Exhaust with Black Tips. This cat-back exhaust offers aggressive and deeper exhaust tones. If you love race-like rumbles and roars when you step on the gas, this exhaust is definitely what you need. With powerful sound and tones, this exhaust maintains a drone-free cabin experience.

      Performance Exhaust Setup. Designed with mandrel-bent tubing, this exhaust system offers improved airflow and reduced back pressure. This results in increased horsepower and boosted performance. This system is also designed to greatly improve the sound and performance of your Mustang, thanks to its dual single-tip, high-flow, chambered mufflers and integrated mid-pipes.

      Superior Quality. When it comes to quality, this exhaust system is one of the leading products in the market. It is comprised of components that are made from 304 stainless steel to ensure durability and great resistance against corrosion. To ensure that the assembly looks as good as it sounds, the tips are chrome-flashed for a rugged look and for protection against tarnishing.

      No-Welding Installation. Installing this exhaust assembly to your Mustang is a straightforward process. This assembly uses factory hangers and mounting points so there’s no need for welding or any modifications. You also get a comprehensive instruction manual for a step-by-step guide.

      Includes 3-Year or 36,000-Mile Warranty. This exhaust assembly comes with a 3-year or 36,000-mile warranty, whichever comes first. Limitations apply and this warranty only covers defects in materials and workmanship. Customers are required to present to be eligible for warranty coverage.

      Application. This Roush Cat-Back Exhaust with Black Tips is specifically designed to fit all 2015-2020 Ford Mustang EcoBoost models without the Active Valve Exhaust. Make sure to check with your local noise ordinance levels prior to purchase.

      Fitment: 2015 2016 2017 2018 2019 2020

      Roush 422094-BLK

      CA Residents: WARNING: Cancer and Reproductive Harm -

      Installation & What's in the Box

      Installation Info

      What's in the Box

      • (1) Y-Pipe Assembly
      • (2) Intermediate Pipe Assembly (Left and Right)
      • (2) 2.25-Inch Torca Duraseal Clamps
      • (2) Mufflers (Left and Right)
      • (2) Round Tips
      • Installation Manual

      Customer Reviews (5)

      Write a Review

      Ratings Summary

      4.8 out of 5 overall rating from 5 customers

      Installation Time: Full Day

      Installation Cost: $100-$250

      • August 09, 2019

        5 2018 EcoBoost - Carz47Gray Installation Time: Afternoon

        Excellent experience

        It’s always difficult to make a purchasing decision on an exhaust purely based on customer reviews and video clips. I trust the Roush brand and American Muscle community and therefore purchased the Roush cat back exhaust system through American Muscle. The set up arrived within a few days. Unfortunately the wrong tips (chrome instead of the ordered black ones) were in the package. I was afraid this would cause a problem and that I would be caught in a holding pattern forever when calling the American muscle hotline. I was wrong. The folks on the phone were very knowledgeable and helped me out in no time. The black tips arrived a week later in perfect shape. Now to the installation. We installed the exhaust in our garage and it took less than 2 hours. Taking out the old one was easy. Installing the Roush exhaust takes a little time since it has multiple connecting pipes that need to be properly aligned before tightening all clamps in order to have the tips be perfectly aligned. When we started the car up, I was unbelievably impressed with the sound. Its not a V8 rumble, but I did not expect a 4 cylinder being able to sound that great. It has a deep tone and some popping when getting if the gas. Not obnoxiously loud, but enough to make a statement. Overall very impressed with this product.

        Helpful (4)
      • May 29, 2019

        5 2015 EcoBoost - CameronCarriker Installation Time: Shop Install Installation Cost: $100-$250

        Great Choice!

        I spent several weeks looking between different exhausts to try and find the one that was not too loud but still had great tone and definition. I arrived at the Roush Cat-Back Exhaust and this exhaust is perfect, it is pretty loud but you can still hear the turbo when accelerating so it was a perfect fit for me. I highly recommend this exhaust! Also there for me there is not too much crackle and pops when accelerating, if you are trying to show off and rev your engine then there will be a crackle once you let off. The black tips accent my triple black car great!

        Helpful (3)
      • February 05, 2019

        4 2018 EcoBoost - AndrewJ Installation Time: Shop Install Installation Cost: $100-$250

        Hard to say how I feel

        The Roush exhaust is crazy loud. I can’t say that I would have bought this with a sound clip to hear it but I’m past that now. It sounds rather good but concerned about the total insane loudness during acceleration. I can tell a difference with the new exhaust in what feels like a bit better performance. Will probably buy something different at some point in the future. Overall it’s a solid exhaust with high quality materials and I am happy with my purchase. I also installed the Roush cold air intake and it is also very nice, they work well together and my mustang sounds like no one else around lol. Anyway thank you Roush and American Muscle.

        Helpful (4)
      • December 03, 2018

        5 2015 EcoBoost - ChrisH Installation Time: Afternoon

        Deep, loud, and satisfying!

        Roush never fails to disappoint. I was a little skeptical buying this first since I couldn't find any audio clips, but I'm so glad I pulled the trigger on this beauty! If you're looking for high quality stainless steel build and a nice deep satisfying growl for your ride, then look no further. Roush fan for life.

        Helpful (15)
      • November 25, 2018

        5 2017 EcoBoost - RonaldL Installation Time: Afternoon


        Fun working on a newer pony, old dog learning new tricks, parts and help availble are boundless, just FUN

        Helpful (14)

      Questions & Answers (10 answers)

      5 Top Rated Questions

      Will you guys have it back in stock anytime soon, if so, when?

      Will this fit a 2017 convertible ecoboost l

      • This will fit the fastback and convertible models

      Helpful (0)

      IMPORTANT QUESTION: Can I request a tune from BAMA for adding an after market exhaust like the Roush Cat-Back Exhaust????? and could I see better hp and torque numbers with a tune? or a more aggressive tone?

      • No tune required but a Bama tune will help improve performance

      Helpful (0)

      Kind of confused, I don’t mean to call you guys out. Just genuinely confused. So CJPony/RoushPerformance says its 2.5”, but you guys say its 2.25” Which is it actually?

      Is the 100 dollars extra just for the black tips?

      • The price increase as compared to the system with chrome tips (item #406810) is due to the black tips alone. The systems do not differ in any other way.

      Helpful (0)
      Post Your Question
      5 More Questions
      Will this fit on a stock EcoBoost exhaust system? 1 answer
      Is this a full 2.5 inch catback? 1 answer
      will this fit a 2015 convertible? 0 answer
      Will this fit on a Cobb 3” downpipe 1 answer
      Are the mufflers shown here, the same as MPN# 421837 except for the tips? 1 answer

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