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Flowmaster American Thunder Axle-Back Exhaust System (18-23 Mustang GT w/o Active Exhaust)

Item 404855
Flowmaster American Thunder Axle-Back Exhaust System (18-23 Mustang GT w/o Active Exhaust)
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Our Price

$957.95 (each)

FREE Shipping Market Price $1,101.99 You Save 13% ($144.04) Up to 10% off for Military & First Responders! See Details

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Ship to: Ashburn - 20149
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Total cost of service $229.00
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      Product Information

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

      Features & Specs

      • Moderate/Aggressive Sound
      • Improves Performance
      • Three-Inch Stainless Steel Tubing
      • Two Super 44 Series Mufflers
      • Double-Wall Round Stainless Steel Tips
      • Made in the USA
      • Intermediate Installation
      • Lifetime Limited Warranty
      • Fits All 2018-2023 Ford Mustang GT Models without Active Exhaust


      Enjoy Performance Gains. This Flowmaster American Thunder Axle-Back Exhaust imparts a moderate to aggressive sound and improves performance for your 2018-2023 Mustang T without Active Exhaust. It has 2 Super 44 Series mufflers for an enhanced driving experience, and the double-wall round stainless steel tips not only look stylish, but are strong and durable. This axle-back exhaust is made in the USA for quality you can depend on.

      Long-Lasting Performance.Since this exhaust is made from 3-inch stainless steel tubing, you can trust that it’s strong and sturdy. You don’t have to worry about the terrain being too rough, because the durable construction of this axle-back exhaust can stand up to anything.

      Medium-Level Installation. There’s no cutting or drilling required to install this exhaust. It comes with all of the required hardware and detailed instructions, so you can install it right out of the box.

      Includes Warranty. Flowmaster backs this axle-back exhaust with a lifetime limited warranty. Refer to the manufacturer’s warranty documentation for complete terms and conditions.

      Application. This Flowmaster American Thunder Axle-Back Exhaust fits all 2018-2023 Ford Mustang GT models without active exhaust.



      Flowmaster 817807

      CA Residents: WARNING: Cancer and Reproductive Harm -

      Installation & What's in the Box

      Installation Info

      What's in the Box

      • (1) Exhaust
      • Installation Hardware
      • Installation Instructions

      Customer Reviews (478)

        Questions & Answers

        10 More Questions

        Will It Fit My Mustang

        • GT - 18, 19, 20, 21, 22, 23

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