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Flowmaster 817342 - Flowmaster American Thunder Exhaust Systems - Truck/SUV

Flowmaster 817342 - Flowmaster American Thunder Exhaust Systems - Truck/SUV

Flowmaster#389-817342

American Thunder Cat-Back Exhaust System
  • 2001-06 GM Suburban/Yukon XL 5.3L
  • 2002-05 Chevy Avalanche 5.3L
  • 2.5" Tubing, 4" Polished SS Tips
  • Dual Side Exit
  • Super 50 Series Muffler
  • 409S Stainless Steel

    Flowmaster 817342 - Flowmaster American Thunder Exhaust Systems - Truck/SUV Details

    GM Trucks

    2001 to 2006 Chevrolet Suburban or Avalanche and GMC Suburban or Yukon XL on a 1/2 Ton chassis with a 5.3L V8 engine.

    One of the best ways to improve the performance of your vehicle is with a technologically advanced exhaust system. Flowmaster's American Thunder system for the 2001-2006 GM Suburban, Yukon XL and Avalanche increases the horsepower, torque and mileage of these popular trucks. The Flowmaster system is fully mandrel bent and consists of a flanged resonator assembly, a Super 50 Series muffler and dual 2.5-inch diameter tailpipes which exit out the side of the vehicle behind the rear tires topped off with large 4.00-inch diameter polished 304 stainless tips. All necessary parts and hardware are included for a great fitting installation. As an American Thunder system, it will typically produce a moderate interior and exterior sound level. The specially designed resonator assembly is tuned to reduce the interior sound level for a more comfortable experience inside the vehicle. Constructed in durable 409S stainless steel, the system is covered by Flowmaster's Limited Lifetime warranty.

    Key Features:

  • Stainless Steel Construction
  • Great Flowmaster Sound
  • Easy At-Home Installation
  • Limited Lifetime Warranty
  • Dyno Tuned For Maximum Performance

  • Flowmaster 817342 - Flowmaster American Thunder Exhaust Systems - Truck/SUV

    These systems are designed with the latest technology to provide the best possible performance from a Flowmaster muffler. Flowmaster's systems will both improve acceleration and passing power, as well as increase fuel mileage. Every Flowmaster system is individually engineered and dyno-tested for each application. All tubing is mandrel bent for the best possible exhaust gas flow, and choose from fabricated 409S stainless steel or aluminized steel tubing for corrosion resistance. Made in USA.

    Bolt this system on and let people know you've arrived. American Thunder by Flowmaster will deliver the aggressive tone you want and the performance you demand from Flowmaster. Each Flowmaster exhaust system comes with Performance Flowmaster Muffler(s), all pipes with hangers attached, clamps and mounting hardware and detailed installation instructions.

    Dual Rear Exit Exhaust Systems (DOR)
    The DOR systems are designed for the person who wants that custom look of a dual exhaust on a late model vehicle that came with a factory single exhaust. These systems feature mandrel bent 16 gauge tubing, either weld-on or flanged inlet pipe/pipes, specially tuned muffler, clamps, and hangers for that aggressive sound of a dual exhaust system.

    Dual Side Exit Exhaust Systems (DOS)
    The DOS systems are designed for the person who wants that custom look of a dual exhaust on a late model vehicle that came with a factory single exhaust. These systems feature mandrel bent 16 gauge tubing, either weld-on or flanged inlet pipe/pipes, specially tuned muffler, clamps, hangers and stainless steel exhaust tips for that aggressive look and sound of a dual exhaust system. Recommended for towing applications.

    Single Side Exit Exhaust Systems (SOS)
    The SOS system is for the person who wants a subdued, but custom look, with all the benefits of a Flowmaster exhaust system. These systems feature mandrel bent 16 gauge tubing, either weld-on or flanged inlet pipe/pipes, specially tuned muffler, clamps, hangers and stainless steel exhaust tip exiting in the factory location out the side behind the rear tire of the vehicle.

    Single Rear Exit Exhaust Systems (SOR)
    The SOR system is for the person who wants a subdued but custom look, with all the benefits of a Flowmaster exhaust system. These systems feature mandrel bent 16 gauge tubing, either weld-on or flanged inlet pipe/pipes, specially tuned muffler, clamps, hangers and stainless steel exhaust tip exiting in the factory location either under the bumper, or through the valance at the rear of the vehicle.

    Muscle Truck Exhaust Systems (DOSS)
    The DOSS systems are designed to give your late model truck the custom look of a NASCAR race truck. These ''Muscle Truck'' systems feature mandrel bent 16 gauge tubing custom bent to fit your vehicle, either weld-on or flanged inlet pipe/pipes, specially tuned muffler, clamps, hangers and stainless steel exhaust tips exiting in front of the rear wheel for that aggressive look and sound of a dual exhaust race vehicle.

    JEGS Easy Kits are designed by JEGS Professionals to help you get all the performance parts you need.

    Flowmaster 389-817342

    Inlet Size (in.)
    2.5
    Outlet Size (in.)
    2.5
    Material
    Stainless Steel
    Exit Position
    Dual Split Side
    Exhaust Type
    Single
    Exit Style
    Turn Out
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