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FLOWMASTER® - American Thunder™ Cat-Back Exhaust System

2004 Dodge Ram
FLOWMASTER® - American Thunder™ Stainless Steel Cat-Back Exhaust System - Single Side Exit FLOWMASTER® - American Thunder™ Stainless Steel Cat-Back Exhaust System - Single Side Exit FLOWMASTER® - American Thunder™ Stainless Steel Cat-Back Exhaust System - Dual Rear / Side Exit FLOWMASTER® - American Thunder™ Aluminized Steel Cat-Back Exhaust System - Dual Rear / Side Exit FLOWMASTER® - American Thunder™ Stainless Steel Cat-Back Exhaust System - Dual Same Side Exit FLOWMASTER® - American Thunder™ Aluminized Steel Cat-Back Exhaust System - Dual Same Side Exit FLOWMASTER® - American Thunder™ Stainless Steel Cat-Back Exhaust System - Dual Rear / Side Exit FLOWMASTER® - American Thunder™ Aluminized Steel Cat-Back Exhaust System - Dual Rear / Side Exit FLOWMASTER® - American Thunder™ Stainless Steel Cat-Back Exhaust System - Dual Rear / Side Exit FLOWMASTER® - American Thunder™ Aluminized Steel Cat-Back Exhaust System - Dual Rear / Side Exit FLOWMASTER® - American Thunder™ Aluminized Steel Cat-Back Exhaust System - Single Side Exit FLOWMASTER® - American Thunder™ Stainless Steel Cat-Back Exhaust System - Dual Rear / Side Exit Image may not reflect your exact vehicle! FLOWMASTER® - Exhaust System Types FLOWMASTER® - American Thunder™ Exhaust Systems Sound Flowmaster Authorized Dealer
Item Number: 574396
4.5 (9 ratings)
Availability: In Stock
Usually ships within 24 to 48 hours

Dodge Ram 2004, American Thunder™ Cat-Back Exhaust System by Flowmaster®. 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.

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Originally $477.50 - $793.74
$382.00 - $634.99
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    Flowmaster® - American Thunder™ Aluminized Steel Cat-Back Exhaust System - Dual Rear / Side ExitFlowmaster® - American Thunder™ Stainless Steel Cat-Back Exhaust System - Dual Rear / Side ExitImage may not reflect your exact vehicle! Flowmaster Exhaust System Types

    Cat-Back Exhaust System - Dual Rear / Side Exit

    American Thunder™ Cat-Back Exhaust System by Flowmaster®, MODERATE SOUND, 3" Inlet / 2.5" Outlet, 2.5" Tubing, 50 Series HD Delta Flow™ Muffler, Dual Rear / Side Exit, and 3" Tips. American Thunder gives you the classic moderate sound 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.
    Sound

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      		$534.99
      Flowmaster® - American Thunder™ Aluminized Steel Cat-Back Exhaust System - Dual Rear / Side ExitFlowmaster® - American Thunder™ Stainless Steel Cat-Back Exhaust System - Dual Rear / Side ExitImage may not reflect your exact vehicle! Flowmaster Exhaust System Types

      Cat-Back Exhaust System - Dual Rear / Side Exit (Moderate Sound)

      American Thunder™ Cat-Back Exhaust System by Flowmaster®, MODERATE SOUND, 3" Inlet / 2.5" Outlet, 2.5" Tubing, 50 Series HD Delta Flow™ Muffler, Dual Rear / Side Exit, and 3" Tips. American Thunder gives you the classic moderate sound 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.
      Sound

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      MATERIAL:
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        		$534.99
        Flowmaster® - American Thunder™ Aluminized Steel Cat-Back Exhaust System - Dual Rear / Side ExitFlowmaster® - American Thunder™ Stainless Steel Cat-Back Exhaust System - Dual Rear / Side ExitImage may not reflect your exact vehicle! Flowmaster Exhaust System Types

        Cat-Back Exhaust System - Dual Rear / Side Exit (Moderate Sound)

        American Thunder™ Cat-Back Exhaust System by Flowmaster®, MODERATE SOUND, 3" Inlet / 2.5" Outlet, 2.5" Tubing, 50 Series HD Delta Flow™ Muffler, Dual Rear / Side Exit, and 3" Tips. American Thunder gives you the classic moderate sound 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.
        Sound

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        MATERIAL:
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          		$534.99
          Flowmaster® - American Thunder™ Aluminized Steel Cat-Back Exhaust System - Dual Same Side ExitFlowmaster® - American Thunder™ Stainless Steel Cat-Back Exhaust System - Dual Same Side ExitImage may not reflect your exact vehicle! Flowmaster Exhaust System Types

          Cat-Back Exhaust System - Dual Same Side Exit (Aggressive Sound)

          American Thunder™ Cat-Back Exhaust System by Flowmaster®, AGGRESSIVE SOUND, 3" Inlet / 2.5" Outlet, 2.5" Tubing, Super 40 Series Delta Flow™ Muffler, Dual Same Side Exit, and 3" Tips. American Thunder gives you the classic aggressive sound 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 an aggressive performance rumble. American Thunder is perfect for a wide range of cars, from ponies to sleepers.
          Sound

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          MATERIAL:
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            		$382.00
            Flowmaster® - American Thunder™ Aluminized Steel Cat-Back Exhaust System - Dual Same Side ExitFlowmaster® - American Thunder™ Stainless Steel Cat-Back Exhaust System - Dual Same Side ExitImage may not reflect your exact vehicle! Flowmaster Exhaust System Types

            Cat-Back Exhaust System - Dual Same Side Exit (Aggressive Sound)

            American Thunder™ Cat-Back Exhaust System by Flowmaster®, AGGRESSIVE SOUND, 3" Inlet / 2.5" Outlet, 2.5" Tubing, Super 40 Series Delta Flow™ Muffler, Dual Same Side Exit, and 3" Tips. American Thunder gives you the classic aggressive sound 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 an aggressive performance rumble. American Thunder is perfect for a wide range of cars, from ponies to sleepers.
            Sound

            In Stock - Usually ships within 24 to 48 hours

            MATERIAL:
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              		$382.00
              17402
              FLOWMASTER® - American Thunder™ Aluminized Steel Cat-Back Exhaust System - Single Side ExitImage may not reflect your exact vehicle! FLOWMASTER® - Exhaust System Types

              Cat-Back Exhaust System

              American Thunder™ Aluminized Steel Cat-Back Exhaust System by Flowmaster®, MODERATE SOUND, 4" Inlet / 4" Outlet, 4" Tubing, 50 Series HD Delta Flow™ Muffler (954056), Single Side Exit, and 5" Tip. American Thunder gives you the classic moderate sound 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.
              Soundinstallation instructions

              In Stock - Usually ships within 24 to 48 hours

              		$424.99
              Flowmaster® - American Thunder™ Aluminized Steel Cat-Back Exhaust System - Dual Rear / Side ExitFlowmaster® - American Thunder™ Aluminized Steel Cat-Back Exhaust System - Dual Rear / Side Exit, Dyno ChartFlowmaster® - American Thunder™ Stainless Steel Cat-Back Exhaust System - Dual Rear / Side ExitImage may not reflect your exact vehicle! Flowmaster Exhaust System Types

              Cat-Back Exhaust System

              American Thunder™ Cat-Back Exhaust System by Flowmaster®, MODERATE SOUND, 3" Inlet / 2.5" Outlet, 3" Tubing, Super 50 Series Delta Flow™ (SUV) Muffler, Dual Rear / Side Exit, and 3" Tips. American Thunder gives you the classic moderate sound 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.
              Sound

              In Stock - Usually ships within 24 to 48 hours

              MATERIAL:
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                		$484.99
                817507
                FLOWMASTER® - American Thunder™ Stainless Steel Cat-Back Exhaust System - Dual Rear / Side ExitFLOWMASTER® - American Thunder™ Stainless Steel Cat-Back Exhaust System - Dual Rear / Side ExitFLOWMASTER® - American Thunder™ Stainless Steel Cat-Back Exhaust System - Dual Rear / Side ExitImage may not reflect your exact vehicle! FLOWMASTER® - Exhaust System Types

                Cat-Back Exhaust System

                American Thunder™ Stainless Steel Cat-Back Exhaust System by Flowmaster®, MODERATE SOUND, 3" Inlet / 2.5" Outlet, 2.5" Tubing, 50 Series HD Delta Flow™ Muffler, Dual Rear / Side Exit, and 3" Tips. American Thunder gives you the classic moderate sound 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.
                Soundinstallation instructions

                In Stock - Usually ships within 24 to 48 hours

                		$616.15
                Flowmaster® - American Thunder™ Stainless Steel Cat-Back Exhaust System - Dual Rear / Side ExitFlowmaster® - American Thunder™ Aluminized Steel Cat-Back Exhaust System - Dual Rear / Side ExitFlowmaster® - American Thunder™ Stainless Steel Cat-Back Exhaust System - Dual Rear / Side ExitImage may not reflect your exact vehicle! Flowmaster Exhaust System Types

                Cat-Back Exhaust System

                American Thunder™ Cat-Back Exhaust System by Flowmaster®, MODERATE SOUND, 3" Inlet / 2.5" Outlet, 2.5" Tubing, 50 Series HD Delta Flow™ Muffler, Dual Rear / Side Exit, and 3" Tips. American Thunder gives you the classic moderate sound 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.
                Sound

                In Stock - Usually ships within 24 to 48 hours

                TUBING:
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                  		$512.99
                  Flowmaster® - American Thunder™ Stainless Steel Cat-Back Exhaust System - Dual Rear / Side ExitFlowmaster® - American Thunder™ Aluminized Steel Cat-Back Exhaust System - Dual Rear / Side ExitFlowmaster® - American Thunder™ Stainless Steel Cat-Back Exhaust System - Dual Rear / Side ExitImage may not reflect your exact vehicle! Flowmaster Exhaust System Types

                  Cat-Back Exhaust System

                  American Thunder™ Cat-Back Exhaust System by Flowmaster®, MODERATE SOUND, 3" Inlet / 2.5" Outlet, 2.5" Tubing, 50 Series HD Delta Flow™ Muffler, Dual Rear / Side Exit, and 3" Tips. American Thunder gives you the classic moderate sound 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.
                  Sound

                  In Stock - Usually ships within 24 to 48 hours

                  TUBING:
                  ::: PLEASE SELECT :::
                    		$512.99
                    817513
                    FLOWMASTER® - American Thunder™ Stainless Steel Cat-Back Exhaust System - Single Side ExitFLOWMASTER® - American Thunder™ Stainless Steel Cat-Back Exhaust System - Single Side ExitFLOWMASTER® - American Thunder™ Stainless Steel Cat-Back Exhaust System - Single Side ExitImage may not reflect your exact vehicle! FLOWMASTER® - Exhaust System Types

                    Cat-Back Exhaust System - Single Side Exit

                    American Thunder™ Stainless Steel Cat-Back Exhaust System by Flowmaster®, MODERATE SOUND, 2.75" Inlet / 3" Outlet, 3" Tubing, 50 Series HD Delta Flow™ Muffler, Single Side Exit, and 3" Tip. American Thunder gives you the classic moderate sound 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.
                    Soundinstallation instructions

                    In Stock - Usually ships within 24 to 48 hours

                    		$454.55
                    817513
                    FLOWMASTER® - American Thunder™ Stainless Steel Cat-Back Exhaust System - Single Side ExitFLOWMASTER® - American Thunder™ Stainless Steel Cat-Back Exhaust System - Single Side ExitFLOWMASTER® - American Thunder™ Stainless Steel Cat-Back Exhaust System - Single Side ExitImage may not reflect your exact vehicle! FLOWMASTER® - Exhaust System Types

                    Cat-Back Exhaust System - Single Side Exit (Moderate Sound)

                    American Thunder™ Stainless Steel Cat-Back Exhaust System by Flowmaster®, MODERATE SOUND, 2.75" Inlet / 3" Outlet, 3" Tubing, 50 Series HD Delta Flow™ Muffler, Single Side Exit, and 3" Tip. American Thunder gives you the classic moderate sound 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.
                    Soundinstallation instructions

                    In Stock - Usually ships within 24 to 48 hours

                    		$454.55
                    Total: $0.00
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                    Product
                    Details

                    Dodge Ram 2004, American Thunder™ Cat-Back Exhaust System by Flowmaster®. 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.

                    Flowmaster - Exhaust Systems Flowmaster - Videos Flowmaster - FAQs Flowmaster - About and Warranty

                    Features:

                    • Available sound levels: Aggressive Sound / Moderate Sound (depends on application and exhaust type)
                    • Increases Power
                    • Increases Torque
                    • Every System Tuned on Dynamometer
                    • Perfect Fitment
                    Flowmaster - American Thunder Logo

                    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 - American Thunder Exhaust Systems

                    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.

                    382.00 634.99
                    Brand: Flowmaster       Part Numbers:
                    bill me later flowmaster exhaust system

                    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.

                    FLOWMASTER® - American Thunder™ Cat-Back Exhaust System Reviews (9)

                    Every Customer can leave a review about our service and the product that was purchased. In order to leave your review for your new product, please follow the link in the email you receive after completing your purchase. You can rate appearance, ease of installation, price/value and product quality.

                    Customers' rating: 4.5 OF 5
                    APPEARANCE 10
                    EASE OF INSTALLATION 9
                    PRICE/VALUE 9
                    QUALITY 9
                    5 (5)
                    APPEARANCE 10
                    EASE OF INSTALLATION 10
                    PRICE/VALUE 8
                    QUALITY 10
                    Flowmaster's American Thunder
                    March 2, 2013 | Posted by | 2013 Dodge Ram (Port Royal, SC)

                    The Flowmaster exhaust sounds great on my truck, it gives the aggressive sound, and it was very easy to install too. It took me about 1hr to complete it. My 2012 Dodge Ram Rt sounds great, with it I get more mpg.

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                    4 (4)
                    APPEARANCE 8
                    EASE OF INSTALLATION 4
                    PRICE/VALUE 8
                    QUALITY 10
                    Flowmaster 50 Series Muffler.
                    December 31, 2012 | Posted by | 2007 Dodge Ram (Albuquerque, NM)

                    The customer service and product quality are both everything that I expected. However, I did have some difficulty with fitment. In my situation, it was not a simple plug and play situation. That's where my local muffler shop got involved. Other than that, I love the products and will continue to shop here.

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                    4.5 (4.5)
                    APPEARANCE 10
                    EASE OF INSTALLATION 10
                    PRICE/VALUE 8
                    QUALITY 8
                    Excellent Experience
                    November 30, 2012 | Posted by | 2011 Dodge Ram (Yarker, ON)

                    Product was received in a timely manner and was exactly as advertised. Installation was even easier than stock, as the left side tail pipe is designed in 2 pieces as opposed to the 1 piece factory pipe. This made it simple to install over and around the axle and spare tire. I did this installation on my garage floor without the use of a hoist and had it completed in about an hour.

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                    4 (4)
                    APPEARANCE 10
                    EASE OF INSTALLATION 8
                    PRICE/VALUE 8
                    QUALITY 6
                    Great!
                    September 1, 2012 | Posted by | 2000 Dodge Ram (Beach Park, IL)

                    System fits well, although the extension pipe from the converter to the muffler is not long enough and I had to buy a piece of pipe and a reducer to complete the installation. Also the add described the system being stainless steel, rather aluminized pipes.

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                    5 (5)
                    APPEARANCE 10
                    EASE OF INSTALLATION 10
                    PRICE/VALUE 10
                    QUALITY 10
                    Muffler Sounds Great.
                    August 25, 2012 | Posted by | 2011 Dodge Ram (Monroe, MI)

                    The Flowmaster muffler sounds great on my truck. I shopped around and couldn't find a better price anywhere. Installation was easy, and it is definitely an exact fit replacement. Thanks for a great experience.

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                    4.5 (4.5)
                    APPEARANCE 8
                    EASE OF INSTALLATION 10
                    PRICE/VALUE 8
                    QUALITY 8
                    Flowmaster American Thunder
                    August 14, 2012 | Posted by | 2007 Dodge Ram (Colorado Springs, CO)

                    The Flowmaster was very easy to install on my 2007 Dodge 1500. It took me about 2 1/2 hrs to install. The difference in how the truck runs and throttle response is amazing. I would recommend this product to anyone. And the help I received from the live help was great, it made it very easy.

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                    5 (5)
                    APPEARANCE 10
                    EASE OF INSTALLATION 10
                    PRICE/VALUE 10
                    QUALITY 10
                    Flowmaster Force II
                    July 10, 2012 | Posted by | 2001 Dodge Ram (Covington, TN)

                    While looking for ways to improve the mileage of my 2001 Dodge 4X4, I had checked into several different exhaust systems. Most were too loud or made a droning noise while traveling down the highway. With the Force II my truck now sounds like a V-8 at idle and under acceleration but is quiet at highway speed. I have also picked up 1 more mile per gallon around town. I would highly recommend this exhaust for the gains in mileage, also ease of installation. It fit all factory hangers perfectly.

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                    5 (5)
                    APPEARANCE 10
                    EASE OF INSTALLATION 10
                    PRICE/VALUE 10
                    QUALITY 10
                    Flowmaster American Thunder Kit Purchase
                    May 5, 2012 | Posted by | 2009 Dodge Ram (San Antonio, TX)

                    I have a 2010 Dodge Ram Quad Cab 8 cyl. 4.7L Engine Truck and with the help of CARiD.com, I have transformed this truck into a top of the line Muscle Truck. I purchased this Flowmaster American Thunder Kit and teamed it up with AirAid 301-232 Cold Air Dam Intake System, also purchased from CARiD.com and my truck sounds identical to a Ford Shelby and/or the Cobra. There is a tiny bit of gas mpg increase but the torque and horsepower increased by a lot; very noticeable and the two products combined, make an awesome sound. I recommend the purchase; I'm very pleased.

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                    5 (5)
                    APPEARANCE 10
                    EASE OF INSTALLATION 10
                    PRICE/VALUE 10
                    QUALITY 10
                    Awsome
                    February 24, 2012 | Posted by | 2009 Dodge Ram (Athol, NY)

                    Easy install Flowmaster tips set it off. Love how they give the option side exit or strait out the back. I went with side sounds. Sweet.

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                    FLOWMASTER® - American Thunder™ Cat-Back Exhaust System Reviews (9)
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