Flowmaster® - American Thunder™ Exhaust System

2004 Chevy Silverado
Flowmaster® - American Thunder™ Aluminized 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™ Aluminized Steel Cat-Back Exhaust System (Dual Rear Exit)Flowmaster® - American Thunder™ Stainless Steel Cat-Back Exhaust System (Dual Rear Exit)Flowmaster® - American Thunder™ Aluminized Steel Cat-Back Exhaust System (Dual Rear Exit)Flowmaster® - American Thunder™ Stainless Steel Cat-Back Exhaust System (Dual Same Side Exit)Flowmaster® - American Thunder™ Stainless Steel Cat-Back Exhaust System (Dual Rear Exit)Flowmaster® - American Thunder™ Stainless Steel Cat-Back Exhaust System (Single Side Exit)Flowmaster® - American Thunder™ Aluminized Steel Cat-Back Exhaust System (Single 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 Exit)Flowmaster® - Exhaust TypesFlowmaster® - American Thunder™ Exhaust System on Chevrolet SilveradoFlowmaster Authorized Dealer
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2004 Chevy Silverado
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Originally $523.38 - $1,049.28
$418.70 - $839.42
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    Flowmaster® - American Thunder™ Aluminized Steel Cat-Back Exhaust System (Dual Same Side Exit)Flowmaster® - American Thunder™ Aluminized Steel Cat-Back Exhaust System (Dual Same Side Exit)
    17392

    Dual Cat-Back Exhaust System - Dual Same Side Exit

    American Thunder™ Aluminized Steel Dual Cat-Back Exhaust System by Flowmaster®, AGGRESSIVE SOUND. Super 40 Series Muffler. Dual Same Side Exit. 2.5" Tubing. 3" Logo Embossed Stainless Tips. American Thunder gives you the classic AGGRESSIVE, MODERATE or MILD 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® - American Thunder™ Aluminized Steel Cat-Back Exhaust System Installation InstructionsFlowmaster® - American Thunder™ Exhaust Systems Aggressive Sound

    In Stock (30) - Usually ships within 24 to 48 hours

    $418.70
    Flowmaster® - American Thunder™ Aluminized Steel Cat-Back Exhaust System (Dual Rear Exit)

    Dual Cat-Back Exhaust System - Dual Rear Exit

    American Thunder™ Dual Cat-Back Exhaust System by Flowmaster®, MODERATE / AGGRESSIVE SOUND. Super 50 Series Muffler. Dual Rear Exit. 3" Polished Stainless Steel Tips. Includes Tube Extensions. American Thunder gives you the classic AGGRESSIVE, MODERATE or MILD 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.

    Fitment Notes: Fits Models With Flanged Catalytic Converter.

    In Stock - Usually ships within 24 to 48 hours

    MATERIAL:
    PLEASE SELECT
      $524.68
      Flowmaster® - American Thunder™ Stainless Steel Cat-Back Exhaust System (Dual Rear Exit)
      817435

      Dual Cat-Back Exhaust System - Dual Rear Exit

      American Thunder™ Stainless Steel Dual Cat-Back Exhaust System by Flowmaster®, MODERATE / AGGRESSIVE SOUND. Super 50 Series Muffler. Dual Rear Exit. 2.5" Tubing. 3" Polished Stainless Steel Tips. Includes Tube Extensions. American Thunder gives you the classic AGGRESSIVE, MODERATE or MILD 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.

      Fitment Notes: Fits Models With Flanged Catalytic Converter.

      Flowmaster® - American Thunder™ Stainless Steel Cat-Back Exhaust System Installation InstructionsFlowmaster® - American Thunder™ Exhaust Systems Moderate Sound

      In Stock (5) - Usually ships within 24 to 48 hours

      $677.90
      Flowmaster® - American Thunder™ Aluminized Steel Cat-Back Exhaust System (Dual Rear Exit)
      17435

      Cat-Back Exhaust System

      American Thunder™ Aluminized Steel Dual Cat-Back Exhaust System by Flowmaster®, MODERATE / AGGRESSIVE SOUND. Super 50 Series Muffler. Dual Rear Exit. 2.5" Tubing. 3" Polished Stainless Steel Tips. Includes Tube Extensions. American Thunder gives you the classic AGGRESSIVE, MODERATE or MILD 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® - American Thunder™ Aluminized Steel Cat-Back Exhaust System Installation InstructionsFlowmaster® - American Thunder™ Exhaust Systems Moderate Sound

      In Stock (26) - Usually ships within 24 to 48 hours

      $524.68
      Flowmaster® - American Thunder™ Stainless Steel Cat-Back Exhaust System (Dual Rear Exit)Flowmaster® - American Thunder™ Aluminized Steel Cat-Back Exhaust System (Dual Rear Exit)Flowmaster® - American Thunder™ Stainless Steel Cat-Back Exhaust System (Dual Rear Exit)

      Cat-Back Exhaust System

      American Thunder™ Dual Cat-Back Exhaust System by Flowmaster®, MODERATE SOUND. Super 40 Series Muffler. Dual Rear Exit. 3.5" Polished Embossed Logo Tips. Includes Tube Extensions. American Thunder gives you the classic AGGRESSIVE, MODERATE or MILD 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.

      In Stock - Usually ships within 24 to 48 hours

      MATERIAL:
      PLEASE SELECT
        $503.69
        Flowmaster® - American Thunder™ Stainless Steel Cat-Back Exhaust System (Dual Same Side Exit)
        817395

        Stainless Steel Cat-Back Exhaust System (Aggressive Sound)

        American Thunder™ Stainless Steel Dual Cat-Back Exhaust System by Flowmaster®, AGGRESSIVE SOUND. Super 40 Series Muffler. Dual Same Side Exit. 2.5" Tubing. 3" Logo Embossed Stainless Tips. American Thunder gives you the classic AGGRESSIVE, MODERATE or MILD 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® - American Thunder™ Stainless Steel Cat-Back Exhaust System Installation InstructionsFlowmaster® - American Thunder™ Exhaust Systems Aggressive Sound

        In Stock (28) - Usually ships within 24 to 48 hours

        $503.69
        Flowmaster® - American Thunder™ Aluminized Steel Cat-Back Exhaust System (Dual Same Side Exit)
        17395

        Aluminized Steel Cat-Back Exhaust System (Moderate / Aggressive Sound)

        American Thunder™ Aluminized Steel Dual Cat-Back Exhaust System by Flowmaster®, MODERATE / AGGRESSIVE SOUND. Super 40 Series Muffler. Dual Same Side Exit. 2.5" Tubing. 3" Logo Embossed Stainless Tips. American Thunder gives you the classic AGGRESSIVE, MODERATE or MILD 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® - American Thunder™ Aluminized Steel Cat-Back Exhaust System Installation InstructionsFlowmaster® - American Thunder™ Exhaust Systems Aggressive Sound

        In Stock (43) - Usually ships within 24 to 48 hours

        $425.00
        Flowmaster® - American Thunder™ Stainless Steel Cat-Back Exhaust System (Dual Rear Exit)Flowmaster® - American Thunder™ Aluminized Steel Cat-Back Exhaust System (Dual Rear Exit)Flowmaster® - American Thunder™ Stainless Steel Cat-Back Exhaust System (Dual Rear Exit)

        Aluminized Steel Cat-Back Exhaust System (Moderate Sound)

        American Thunder™ Dual Cat-Back Exhaust System by Flowmaster®, MODERATE SOUND. Super 40 Series Muffler. Dual Rear Exit. 3.5" Polished Embossed Logo Tips. Includes Tube Extensions. American Thunder gives you the classic AGGRESSIVE, MODERATE or MILD 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.

        Fitment Notes: Fits Models With Single Flanged Catalytic Converter.

        In Stock - Usually ships within 24 to 48 hours

        MATERIAL:
        PLEASE SELECT
          $503.69
          Flowmaster® - American Thunder™ Stainless Steel Cat-Back Exhaust System (Dual Rear Exit)
          817436

          Cat-Back Exhaust System

          American Thunder™ Stainless Steel Dual Cat-Back Exhaust System by Flowmaster®, MODERATE SOUND. Super 50 Series Muffler. Dual Rear Exit. 2.5" Tubing. 3" Polished Embossed Logo Tips. Includes Single Flanged 3" Inlet Pipe. American Thunder gives you the classic AGGRESSIVE, MODERATE or MILD 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® - American Thunder™ Stainless Steel Cat-Back Exhaust System Installation InstructionsFlowmaster® - American Thunder™ Exhaust Systems Moderate Sound

          In Stock (7) - Usually ships within 24 to 48 hours

          $622.22
          Flowmaster® - American Thunder™ Stainless Steel Cat-Back Exhaust System (Single Side Exit)Flowmaster® - American Thunder™ Stainless Steel Cat-Back Exhaust System (Single Side Exit)
          817328

          Single Cat-Back Exhaust System with 4" Polished SS Tip

          American Thunder™ Stainless Steel Single Cat-Back Exhaust System by Flowmaster®, AGGRESSIVE SOUND. 50 Series Big Block Muffler. Single Side Exit. 3.5" Tubing. 4" Polished Stainless Steel Tip. American Thunder gives you the classic AGGRESSIVE, MODERATE or MILD 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® - American Thunder™ Stainless Steel Cat-Back Exhaust System Installation InstructionsFlowmaster® - American Thunder™ Exhaust Systems Aggressive Sound

          In Stock (25) - Usually ships within 24 to 48 hours

          $525.76
          Flowmaster® - American Thunder™ Aluminized Steel Cat-Back Exhaust System (Single Side Exit)
          17328

          Single Cat-Back Exhaust System with 4" Logo Embossed SS Tip

          American Thunder™ Aluminized Steel Single Cat-Back Exhaust System by Flowmaster®, AGGRESSIVE SOUND. 50 Series Big Block Muffler. Single Side Exit. 3.5" Tubing. 4" Logo Embossed Stainless Tip. American Thunder gives you the classic AGGRESSIVE, MODERATE or MILD 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® - American Thunder™ Aluminized Steel Cat-Back Exhaust System Installation InstructionsFlowmaster® - American Thunder™ Exhaust Systems Aggressive Sound

          In Stock (29) - Usually ships within 24 to 48 hours

          $422.90
          Flowmaster® - American Thunder™ Stainless Steel DownPipe-Back Exhaust System (Dual Side Exit)Flowmaster® - American Thunder™ Stainless Steel DownPipe-Back Exhaust System (Dual Side Exit)
          817643

          DownPipe-Back Exhaust System

          American Thunder™ Stainless Steel Dual DownPipe-Back Exhaust System by Flowmaster®, MODERATE SOUND. Power Chamber Muffler. Dual Side Exit. 4" Tubing. 5" Polished Tips. American Thunder gives you the classic AGGRESSIVE, MODERATE or MILD 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® - American Thunder™ Stainless Steel DownPipe-Back Exhaust System Installation InstructionsFlowmaster® - American Thunder™ Exhaust Systems Sound

          In Stock (7) - Usually ships within 24 to 48 hours

          $839.42
          Total: $0.00
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          Product Details

          Chevy Silverado 2004, American Thunder™ 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 Flowmaster Flowmaster

          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

          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.

          418.70 839.42
          Brand: Flowmaster       Part Numbers:
          paypal credit 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.

          Product Reviews (1)

          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.

          Flowmaster® - American Thunder™ Exhaust System
          Flowmaster® - American Thunder™ Aluminized Steel Cat-Back Exhaust System (Dual Same Side Exit)
          Average Rating:  4  4 of 5
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          2001 GMC Sierra | Posted by | (Casa Grande, AZ)

          Sounds great. I recommend this product.

          4 people found this review helpful.
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