Flowmaster® 817850 - American Thunder™ 409 SS Axle-Back Exhaust System with Split Rear Exit

1 review|Item # mpn4618072909|Similar Products
$375.95
In Stock (18) - Ships within 24 hrs
Vehicle Specific
  • Please Select Vehicle Below
Notes:
  • Uses Factory Hangers
  • Deletes Factory Resonators
  • Remember to check your local and state laws regarding vehicle noise restrictions
Authorized Dealer

Vehicle Fitment

MakeModelYear
DodgeRam 2019
Ram1500 2019

Product Details

American Thunder™ 409 SS Axle-Back Exhaust System with Split Rear Exit by Flowmaster®. Resonator Delete Kit. Exhaust System Type: Axle-Back. Exhaust Tubing Material: 409 SS. Main Tubing Diameter: 2.5". Exhaust System Sound: Moderate. American Thunder gives you the classic AGGRESSIVE or MODERATE sound (depends on application and exhaust type) of a Flowmaster chambered exhaust, which is the classic sound of classic American big performance engines. This is a system that gives the most sedate vehicle a performance rumble. American Thunder is perfect for a wide range of cars, from ponies to sleepers.

Notes

  • Uses Factory Hangers
  • Deletes Factory Resonators
  • Remember to check your local and state laws regarding vehicle noise restrictions

Specifications

Exhaust System Type: Axle-Back
Exhaust Tubing Material: 409 SS
Exit Location: Split Rear
Exit Configuration: Dual
Main Tubing Diameter: 2.5"
Exhaust System Sound: Moderate
Tip Quantity: 2
Tip Finish: Black Ceramic
Tip Material: 304 SS
Tip Type: Single Wall
Tip Outlet Diameter: 4.5"
Tip Length: 11"
Tip Shape: Round
Tip Style: Rolled
Tip Cut Type: Angle-Cut
Hardware Included: Yes

Includes

  • 86540S Right Tailpipe x1
  • 86541S Left Tailpipe x1
  • ST507B Tips x2
  • PK977 Hardware Pack includes:
  • MC225BS 2-1/4" Band Clamp x2
  • HW502 7/16" Hanger Keepers

Features

  • High Quality Performance Sound
  • Increases Torque and Power
  • Mandrel Bent 16 Gauge Tubing
  • Includes Hangers and Hardware for Easy Installation
  • Every System Tuned on Dynamometer

American Thunder gives you exactly the sound that is promised by the name of the series. The exhaust sound of the American Thunder system has become a symbol of American power that is recognized all over the world. American Thunder is the most popular of the Flowmaster exhaust systems, enhancing power, torque, throttle response and mileage for automobile enthusiasts all over the world.

All Flowmaster exhaust systems give the same improvement of performance. All Flowmaster exhaust systems produce a beautiful deep performance tone. Choosing between the five different exhaust systems is not a technical decision – it is all up to your personal taste. It’s A Sound Decision™. The racing origin is evident in every Flowmaster exhaust system. All the five series of systems are tuned for maximum performance. They differ in technology and tuning, and thus in tone and character, giving you a performance engine sound to your personal liking.

Flowmaster exhaust systems employ two unique technologies, the patented Delta Flow and the Laminar Flow. They give different characters of sound and can be tuned to achieve the desired exhaust note. Flowmaster Exhaust System Technology is so versatile and gives such a high degree of control that it is used both by racers, who want maximum power, and by the U.S. Air Force in Stealth applications, where maximum silence and minimum heat emissions are prime considerations.

Be it for a domestic or import truck, SUV, off-road warrior, daily driver, muscle car, euro-spec cruiser or sport compact vehicle, Flowmaster technicians personally hand select the right muffler, tubing size, resonator, and tip to make the process easy for you. Best of all, Flowmaster stainless steel exhaust systems are covered by a Limited Lifetime Warranty; ensuring that your exhaust will last as long as you own your vehicle. If you choose aluminized steel products, Flowmaster backs them up with a 3-year warranty.

Flowmaster® has its roots in solving the engine noise problems encountered by California racers in the 1980s. In 1983 Flowmaster’s founder, Ray Flugger, created his first patented design of racing silencers, which dampened noise with minimal loss of power. Ray attached handles to ease carrying the square shaped race mufflers through the race pits, and the mufflers became known as the "suitcase mufflers." Today, the innovative Flowmaster mufflers are the result of years of development with top race engine builders, thousands of hours of dyno research and "real-world" on-track testing.

Part Number:
817850
UPC:
700042038893
Alternate MPN:
817850

Reviews

(1)
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Flowmaster® 817850 - American Thunder™ 409 SS Axle-Back Exhaust System with Split Rear Exit
/5
1-1 of 1 Reviews
5 of 5
Great Value
Flowmaster® - American Thunder™ 409 SS Axle-Back Exhaust System with Split Rear Exit
This went on a 2020 Ram 1500 Bighorn. The instructions were easy to read, and the installation was a breeze. Quality of parts is top notch, and fitment was right in the money. I’m impressed with how well this resonator delete kit woke up my Ram truck. Great sound inside and outside the cabin at low speeds, and it settles down nicely at highway speeds.
Posted by Patrick (Killeen, TX) / April 03, 20222019 Ram 1500

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