My Cart

You have no items in your shopping cart.

Buy with monthly payments

Get a real-time decision.

Grid List

Set Descending Direction
  1. Flowmaster 04-08 5.4L F-150 American Thunder Dual Exit CatBack
    $614.95

    Flowmaster 04-07 5.4L F-150 American Thunder Dual Exit CatBack

    • Flowmaster American Thunder Dual Exit Cat-Back Exhaust System (Optional Dual Rear or Side Exit, Behind Rear Axle)
    • Dual 2.50-inch, mandrel bent aluminized tail-pipes
    • Two 3-inch, angle cut stainless steel tips
    • Works With All 2 and 4 Wheel Drive Trucks
    • Super 40 Series Mufflers



    The D.O.R. 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 aluminized steel 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.

    Learn More
  2. Flowmaster 04-08 5.4L F-150 Force II Dual Exit Cat-Back Exhaust
    $597.95

    Flowmaster 04-07 5.4L F-150 2.5" Force II Dual Exit Cat-Back Exhaust System

  3. Optional Dual Rear or Side Exit, Behind Rear Axle
  4. Dual 2.50-inch, mandrel bent aluminized tail-pipes
  5. Two 3-inch, angle cut stainless steel tips
  6. Works With All 2 and 4 Wheel Drive Trucks
  7. Learn More
  • Flowmaster 04-08 5.4L F-150 Force II 3" Single Exit CatBack
    $437.95

    Flowmaster 04-07 5.4L F-150 Force II 3" Single Exit Cat-Back Exhaust System

  • Single Side Swept Exit CAT-Back
  • 3-inch Single Exhaust, 3-inch Stainless Tip


  • The S.O.S. 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 aluminized steel 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. Learn More

    Grid List

    Set Descending Direction