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Part number: 817640
Product Details
Flowmaster 817640 Force II Exhaust Systems - Truck/SUV
Products specifications
2WD/4WD RWD/4WD
Exhaust Series Force II
Exhaust System Type Cat-Back
Exit Position SOS
Heat Shield None
Inlet Dia. 3.5
Material 409S Stainless Steel
muffler part number Kit Only
Muffler Qty 1
Muffler Series 50 Series Big Block
Outlet Dia. 3.5
Single/Dual Single
Sound Level Mild/Moderate
Tip Diameter 4
Tip Length 10
Tip Qty 1
Tubing Dia. 3.5

These Flowmaster cat back 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 cat back exhaust system 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.

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.


Force II Cat-Back Exhaust System
  • 2011-13 GM Silverado/Sierra 2500HD/3500HD 6.0L
    (Extra Cab/Standard Bed)
  • 3.5" Tubing, 4" Polished SS Tips
  • Single Side Exit
  • 50 Series Big Block Muffler
  • 409S Stainless Steel
Reviews
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R
The experience was wonderful. The ability to look up parts by the make, model, and year of my auto made it easy to find the right part. And getting a discount on shipping to encourage my purchase was awesome. I hope the parts all are correct for my vehicl
D
vary easy happy able to use pay pal thanks
A
Very easy and quick ordering process, so far so good. Completely satisfied with the product and the speed of shipment. Would gladly do business again with Autoplicity.
H
Super pricing, fast shipments, good selection they have it all.
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Fitment
Chevrolet Silverado 2500 HD
2015 Chevrolet Silverado 2500 HD ALL / LT / LTZ / WT
2013 Chevrolet Silverado 2500 HD ALL / LT / LTZ / WT
2012 Chevrolet Silverado 2500 HD ALL / LT / LTZ / WT
2011 Chevrolet Silverado 2500 HD ALL / LT / LTZ / WT
Chevrolet Silverado 3500 HD
2013 Chevrolet Silverado 3500 HD ALL / LT / LTZ / WT
2012 Chevrolet Silverado 3500 HD ALL / LT / LTZ / WT
2011 Chevrolet Silverado 3500 HD ALL / LT / LTZ / WT
GMC Sierra 2500 HD
2015 GMC Sierra 2500 HD Base / Denali / SLE / SLT
2013 GMC Sierra 2500 HD ALL / SLE / SLT / WT
2012 GMC Sierra 2500 HD ALL / SLE / SLT / WT
2011 GMC Sierra 2500 HD ALL / SLE / SLT / WT
GMC Sierra 3500 HD
2013 GMC Sierra 3500 HD ALL / SLE / SLT / WT
2012 GMC Sierra 3500 HD ALL / SLE / SLT / WT
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