FREE SHIPPING & HANDLING!*                           Order by 11 PM EST for Same Day Shipping!

Flowmaster 817451 - Flowmaster Force II Exhaust Systems - Truck/SUV

Flowmaster 817451 - Flowmaster Force II Exhaust Systems - Truck/SUV

Flowmaster#389-817451

Force II Cat-Back Exhaust System
  • 2007-14 GM Silverado/Sierra 2500/3500 HD 6.0L (Crew Cab/Short Bed)
  • 3.5" Tubing, 4" Polished SS Tips
  • Single Side Exit
  • 50 Series Big Block Muffler
  • 409S Stainless Steel

    Flowmaster 817451 - Flowmaster Force II Exhaust Systems - Truck/SUV Details

    GM Silverado/Sierra 2500/3500

    For owners of the 2007-2012 GM 2500HD and 3500HD Crew Cab/Short Bed trucks equipped with the 6.0 liter engine, the search is now over for a long lasting, high performance bolt-on exhaust system. Flowmaster's part number 817451 is an American-made, 409S stainless steel, direct fit system that bolts on to the truck behind the OE converter for 50-state emissions legality, as well as enhanced performance and efficiency. Featuring a 50 Series Big Block muffler for a moderate tone inside and out, this American Thunder system utilizes 3.50" mandrel bent piping throughout. The pipe exits behind the right rear tire with a 4.00" polished, Flowmaster-embossed stainless tip. The exhaust ships complete with all necessary hardware, as well as detailed instructions for easy at-home or professional installation, while Flowmaster's Limited Lifetime Warranty assures a quality product that will last a lifetime.

    Key Features:

  • Stainless Steel Construction
  • Deep, Performance Tone
  • Patented Delta Flow Technology
  • Limited Lifetime Warranty
  • Dyno Tuned For Maximum Performance

  • Flowmaster 817451 - Flowmaster Force II Exhaust Systems - Truck/SUV

    Flowmaster Cat-Back Exhaust Systems are designed with the latest technology to provide the best possible performance from a Flowmaster Muffler. They improve acceleration, passing power, and fuel mileage. Every cat-back exhaust is individually engineered and dyno-tested for each application. All tubing is mandrel bent for the best possible exhaust gas flow and fabricated from 409S stainless or aluminized steel for corrosion resistance. Made in the USA.

    Wanna let folks know you've got a Flowmaster system under your vehicle when you open it up, but don't want a lot of interior resonance? Flowmaster's Force II systems are designed to provide plenty of "Flowmaster Sound" under acceleration, but lower levels while cruising.

    Dual Rear Exit Exhaust Systems (DOR)
    The Flowmaster 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 cat back 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.

    Dual Side Exit Exhaust Systems (DOS)
    The Flowmaster 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 Flowmaster SOS system is for the person who wants a subdued, but custom look, with all the benefits of a Flowmaster exhaust system. These cat back 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 Flowmaster 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 Flowmaster 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.

    Flowmaster 389-817451

    Inlet Size (in.)
    3.5
    Outlet Size (in.)
    3.5
    Material
    409 Stainless Steel
    Exit Position
    Single Side
    Exhaust Type
    Single
    Exit Style
    Straight
    JEGS Performance Products 1126 - JEGS Heavy-Duty Nitrile Gloves
    Only $13.99

    Grime Boss A541S30X - Grime Boss Hand Wipes
    Only $9.99

    Grime Boss A544R10X - Grime Boss Hand Wipes
    Only $4.69