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Flowmaster

Flowmaster Force II Cat-back Exhaust System

2011-2019 Chevrolet/GMC 2500/3500HD trucks with 6.0L engine. Fits Crew cab/short bed.

Part # 817451 Be the first to write a review
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This Force II® Cat-back exhaust system is specifically designed for 2011-2019 GM Silverado/Sierra 2500HD/3500HD crew cab/short bed trucks with the 6.0L engine. This emissions legal system is constructed from 3.50-inch mandrel-bent stainless steel tubing flowing into a 50 Series Big Block™ performance muffler for a mild to moderate tone inside and moderate sound level outside the truck. The tailpipe exits behind the right rear tire, which is ideal for towing applications, and is finished off with a large 4.00-inch polished stainless steel tip. The system uses the factory hanger locations making for a quick and easy installation. Includes all necessary parts, hardware, and detailed instructions for an easy installation you can do at home. Covered by our Limited Lifetime Warranty. Note: Fits 2 and 4 wheel drive Crew Cab models with the 6.5ft bed.

Features:

  • Includes Hangers and Hardware for and Easy Installation
  • Large 4.00-inch Polished 304 Stainless Steel Tip
  • 3.50-inch Mandrel bent Stainless Steel Tubing
  • Connects After Factory Catalytic Converter
  • 50 Series "Big Block" Performance Muffler
  • Uses the Factory Hanger Locations
  • Moderate Exterior Exhaust Tone
  • Quick and Easy Easy Installation
  • Lifetime Limited Warranty

About Flowmaster

Flowmaster® is a household name, and for good reason. They've built legendary exhaust systems and mufflers for decades, and now offer performance air intakes, catalytic converters, and headers to give your hot rod performance to match the iconic Flowmaster sound.

2WD/4WD2WD/4WD
Brand Flowmaster
Emission Code5
Exhaust SeriesForce II
Exit PositionSingle Side Exit
Heat ShieldNo
Inlet Diameter (in)3.5
Material409 Stainless Steel
Muffler Part NumberKit Only
Muffler Quantity1
Muffler Series50 Series Big Block
Outlet Diameter (in)3.5
Product TypeExhaust System
Single DualSingle
Sound LevelModerate/Mild
System TypeCat-back
Tip Diameter (in)4
Tip Quantity1
Tubing Diameter (in)3.5
UPC700042025435
California Proposition 65 Chemical NameChromium (hexavalent compounds)
Nickel (Metallic)
California Proposition 65 RequiredYes
Part Number817451
5

This part is legal for sale or use on Emissions Controlled Vehicles, Uncontrolled (Non-Emissions Controlled) Vehicles, and Racing Use Only Vehicles because it does not affect vehicle emissions and is not covered by emissions regulations.

Fits 2011-2019 Chevrolet/GMC 2500/3500HD trucks with 6.0L engine. Fits 2/4 wheel drive Crew cab/short bed models.
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    Some parts are not legal for use in California or other states with similar regulations.