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

Item 405959
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Market Price $718.74 You Save 13% ($93.75)
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$624.99 (kit)

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      Product Information

      Features, Description, Reviews, Specs & Installation


      • Designed Exclusively for AmericanMuscle
      • Features Loud and Aggressive Exhaust Tones
      • Optimized Airflow for Better Performance
      • With Roush-Designed High-Flow Mufflers
      • Features Full Mandrel Bent Pipe
      • Made From 304 Stainless Steel Materials
      • Includes 4-Inch Black Dual Wall Tips
      • Uses OEM Hangers and Mounting Points
      • No-Drill Installation
      • Includes Limited Lifetime Warranty
      • Proudly Made in the USA
      • Not Compatible with Active Exhaust
      • Fits 2015-2020 Ford Mustang EcoBoost Models


      Aggressive Exhaust Tones. With this Roush Axle-Back Exhaust with Black Tips, which is designed exclusively for AmericanMuscle, you are bound to experience a drone-free cabin, while your Mustang EcoBoost is roaring with a powerful tone outside. It’s an exhaust assembly that’s perfect for Mustang enthusiasts craving for a more aggressive tone and deeper exhaust sound whenever you step on the pedal.

      Performance-Grade Exhaust. This axle-back exhaust is the best way to get your exhaust system up to speed with your Ford Mustang’s high-powered engine. Designed to give your vehicle an aggressive tone and sleek look, this exhaust assembly features embossed tips and mandrel bent mufflers. What you get is an exhaust system that offers high flow and reduced back pressure for better performance.

      High-Quality Construction. Roush is a leading brand name when it comes to high-performance and quality exhausts. In fact, this axle-back assembly is comprised of components that are constructed from high-grade T-304 stainless steel. As such, you can rest assured that these exhaust components are corrosion-resistant and can withstand years of abuse. The dual-wall exhaust tips are black, a unique feature only for AmericanMuscle.

      Minor Cutting Required.
      Although the components in this exhaust system are designed to fit your EcoBoost, some minor cutting will still be required during installation. Using a reciprocating saw, you need to cut the factory exhaust pipe in order to insert this Roush exhaust. No welding or drilling needed as this assembly simply uses existing factory hangers and mounting points.

      Roush Limited Lifetime Warranty. Roush offers a limited lifetime warranty for this axle-back exhaust system. The warranty coverage shall start from the date of retail purchase and covers for defects in materials and workmanship. An original proof of purchase is required to be eligible for warranty coverage.

      Application. This Roush Axle-Back Exhaust with Black Tips is specifically designed to fit all 2015-2020 Ford Mustang EcoBoost models without the Active Valve Exhaust.

      Fitment: 2015 2016 2017 2018 2019 2020 Details

      MPN# 421837-BLK

      CA Residents: WARNING: Cancer and Reproductive Harm -


      Customer Reviews (2)

      Write a Review

      Ratings Summary

      5.0 out of 5 overall rating from 2 customers

      Installation Time: Less than 1 Hour

      • October 20, 2019

        5 2018 EcoBoost - Anonymous Installation Time: Less than 1 Hour

        Perfect Fit on ecoboost

        This is an AMAZING Muffler kit. I installed it myself in less than 30 minutes with the correct tools. Love it

        Helpful (0)
      • December 28, 2018

        5 2019 EcoBoost - Elie Installation Time: Less than 1 Hour

        Great sound

        the roush axle back is truly amazing. Its been installed on my ecoboost for about 2 months and the sound is truly amazing it sounds deep and there is barely any drone. turbo sound is more defined. This axleback definetly makes the ecoboost loud but not obnoxiously loud. its just perfect

        Helpful (5)

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      Installation & What's in the Box

      Installation Info

      What's in the Box

      • (1) Muffler Assembly - Driver Side
      • (1) Muffler assembly - Passenger Side
      • (2) Tips
      • (4) Clamps

      Will It Fit My Mustang

      • EcoBoost - 15, 16, 17, 18, 19, 20

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