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Exhaust› Exhaust Pipes, Systems and Components
Flowmaster
American Thunder Cat-Back Exhaust System 2008-2014 Dodge Challenger Srt8 With 6.1L Hemi And 6.4L Hemi Engines Aggressive To Moderate Sound Flowmaster
SKU: F00L 817499
Moderate — 2–4 hours
Overview
Constructed from aluminized steel for corrosion resistance, the American Thunder system includes hardware and instructions for installation. It is engineered to deliver performance gains, with an estimated 5-10% increase in horsepower and a boost in MPG.
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Part #: 817499
For the person who is looking for a complete Cat-back dual exhaust system with an aggressive tone. With easy fit in mind, these systems are mandrel bent for maximum performance and include specially selected mufflers. Delivers an aggressive exterior and moderate interior tone and is well suited to the enthusiast owner. Like all Flowmaster systems, the benefits include improved throttle response, power and mileage. Designed for an easy fit, these systems include all necessary parts and hardware for easy installation.
Features:
- Mandrel Bent 16 Gauge 409 Stainless Tubing
- Dyno tuned for maximum performance
- Includes Hangers And Hardware For Easy Installation
- Includes hangers and hardware for easy installation
- Dyno Tuned for Maximum Performance
- Moderate to Aggressive Sound Exterior Exhaust Tone
- Premium Flowmaster Quality
- Mandrel bent 16 gauge stainless steel tubing
- 3 Year Limited Warranty
- Made in the USA
American Thunder Cat Back Exhaust System | Dual | Dual Rear Exit | Incl. 3.0 in. Tubing/Super 40 Series (TM) Mufflers/Scavenger X-Pipe/4.0 in. Logo Embossed Stainless Tips
This product may expose you to chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm.
Vehicle Symptoms
- Stock exhaust too quiet
- Want more aggressive exhaust note
- Looking for better throttle response
- Exhaust drone at highway speeds
- Want to improve HEMI sound
Relevant Conversations
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Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.
Fitment
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Specifications
| Brand | Flowmaster |
| Part Number | F00L 817499 |
Videos
2008-14 Dodge Challenger SRT8 - American Thunder Cat-Back Exhaust System 817499
2008-14 Dodge Challenger SRT8 - Outlaw Cat-back Exhaust System 817563
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2011 Dodge Challenger SRT8 392 Inaugural edition Flowmaster Exhaust.
2008-2010 Dodge Challenger SRT8 - Flowmaster American Thunder 3" true dual exhaust system ID9834
Challenger RT with (817479) Flowmaster American Thunder
Flowmaster Muffler on 2012 Dodge Challenger
Dodge Challenger SRT8 Exhaust Sound 6.1L V8 🔥 Borla,Corsa,Stock,Flowmaster,Muffler Delete,Review+
2015-2022 Challenger 6.4L Flowmaster American Thunder Cat-Back Exhaust Sound Clip & Review
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Returns & Fitment
Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.
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