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Flowmaster American Thunder Axle-Back Exhaust System (24-26 Mustang GT w/o Active Exhaust)Find parts that fit my vehicle

Item 439577-23
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495 Reviews
Our Price

$619.80 kit

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      Product Information

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

      Features & Specs

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      • Part Of The American Thunder Exhaust Series
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      • Axle-Back Exhaust System Featuring Super 44 Series Mufflers
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      • 3.00-Inch Mandrel Bent 409 Stainless Steel Tubing
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      • Dual 4.00-Inch Polished Stainless Steel Tips With 5.25-Inch Length
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      • Uses Factory Hanger Locations For Easy Installation
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      • Includes All Necessary Hardware
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      • Provides Up To 8 Hp And 6 Lb-Ft Increase Over Stock
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      • Designed For Aggressive Exhaust Tone And Increased Performance
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      • Lifetime Limited Warranty Included
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      • Emission Code 5 - Legal For Emissions Controlled And Uncontrolled Vehicles
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      • Catalytic Converter Not Included
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      • Clamp-On Inlet Type With Flat Band Clamps Included
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      • Slip-Fit Muffler Inlet And Outlet Connections
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      • Muffler Body Constructed From 409 Stainless Steel With Black High-Temperature Finish
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      • Oval Muffler Body Shape Measuring 10.25 Inches Length By 9.50 Inches Width By 4.00 Inches Height
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      • Sound Level Classified As Aggressive / Moderate
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      • Fits 24-26 Mustang GT Without Active Exhaust
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      Description

      Performance Exhaust System. The Flowmaster American Thunder Axle-Back Exhaust System improves the 2024-2026 Mustang GT without active exhaust by enhancing exhaust flow and delivering a deeper, more aggressive tone. It is engineered to boost rear wheel horsepower and torque, elevating vehicle performance and driving experience.

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      Construction and Appearance. Crafted from durable 409 stainless steel tubing and featuring Super 44 series mufflers with reflection-type technology, this axle-back system delivers a bold aggressive sound. The dual 4.00-inch polished stainless steel tips provide a custom, high-quality finish.

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      Installation. Installation is simple, utilizing factory hanger locations and included hardware, requiring no welding or drilling. The clamp-on inlet connection with flat band clamps ensures a secure and hassle-free fitment.

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      Warranty. Backed by a lifetime limited warranty for lasting peace of mind.

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      Application. Specifically designed for the 2024-2026 Mustang GT models without active exhaust systems for a perfect fit and optimized performance.

      Flowmaster 818162

      CA Residents: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov

      Installation & What's in the Box

      Installation Info

      Installation Time

      (approx) 3 Hours

      Difficulty Level:

      Light to Moderate mechanical skill required.

      Installation Guides

        No guide available for this part yet.

      What's in the Box

      • (1) Axle-Back Exhaust System

      4.7

      Customer Reviews (495)

      Questions & Answers

      No questions about this product yet. Ask the First Question

      Will It Fit My Mustang

      • GT - 24, 25, 26

        Performance Exhaust Built for Enthusiasts

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