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Find Cat-Back Exhaust for your Challenger

Flowmaster American Thunder Cat-Back Exhaust System (15-23 6.4L HEMI Challenger)Find parts that fit my vehicle

Item CH1667
Flowmaster American Thunder Cat-Back Exhaust System (15-23 6.4L HEMI Challenger)
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Ship to: Ashburn - 20149
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    Total cost of service $299.00

      Product Information

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

      Features & Specs

      • Produces Moderate to Aggressive Exhaust Tones
      • Improves Car’s Overall Engine Performance
      • Features the Super 40 Muffler Series
      • With Mandrel Bent Chambered Stainless Tubing
      • Non-Rolled, Double Wall Tip Edge Style
      • Dual Rear Exit
      • Bolt-On Installation
      • Covered by a Limited Lifetime Warranty
      • Fits 2015-2023 Dodge Challenger Models With 6.4L Engines


      Moderate and Aggressive Exhaust Tones. If your Challenger’s exhaust tones are too silent and meek, you may consider equipping your car with this Flowmaster American Thunder Cat-Back Exhaust. This cat-back exhaust lets your car growl with a loud, aggressive note while starting up your engine. Then it creates a moderate roar while you’re cruising the road.

      Improves Engine Performance. Geared with the Super 40 Muffler Series, your car’s exhaust gases are able to escape more freely due to this cat-back’s more efficient and larger pipes. As a result, you experience significant improvements in your car’s overall engine performance. With this cat-back exhaust, you’ll be gaining more horsepower and torque, quicker throttle response, and better mileage.

      High Quality Construction. Engineered for on-road use, this Flowmaster American Thunder Cat-Back Exhaust is guaranteed to be of the highest quality. It’s crafted from durable stainless steel that’s capable of withstanding impact, heat, and corrosion. With its stainless steel construction, this cat-back exhaust won’t easily break.

      Bolt-On Installation. For your installation convenience, this kit already includes all the necessary mounting hardware.

      Covered by a Limited Lifetime Warranty. This cat-back exhaust is covered by a limited lifetime warranty. If you encounter any issues of your purchased product, you may send a warranty request.

      Application. This Flowmaster American Thunder Cat-Back Exhaust is made to fit 2015-2023 Dodge Challenger models with 6.4L engines.



      Flowmaster 817739

      CA Residents: WARNING: Cancer and Reproductive Harm -

      Installation & What's in the Box

      Installation Info

      What's in the Box

      • (2) Mufflers
      • (1) Scavenger Assembly
      • (1) Left Tailpipe Assembly
      • (1) Right Tailpipe Assembly
      • Mounting Hardware

      Customer Reviews (451)

        Questions & Answers

        10 More Questions

        Will It Fit My Challenger

        • 392 Hemi Scat Pack Shaker - 16
        • R/T 392 - 17, 18
        • R/T Scat Pack - 16, 19, 20, 21, 22, 23
        • R/T Scat Pack Shaker Widebody - 21
        • R/T Scat Pack Widebody - 19, 20, 21, 22, 23
        • Scat Pack - 15
        • SRT 392 - 15, 16, 17, 18
        • T/A 392 - 17, 18
        • T/A 392 Widebody - 21