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817640 - Flowmaster Force II Cat-back Exhaust System - default Image
817640 - Flowmaster Force II Cat-back Exhaust System - additional Image
817640 - Flowmaster Force II Cat-back Exhaust System - additional Image
2011-15 GM Silverado/Sierra 2500/3500HD 6.0L - Force II Cat-back Exhaust System 817640YouTube Button

Flowmaster Force II Cat-back Exhaust System

2011-2015 Chevrolet Silverado, GMC Sierra 2500HD, 3500 HD with 6.0L gas engines. Fits Extra Cab/Standard Bed Only.

PART# 817640

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Fits 2011-2015 Chevrolet Silverado, GMC Sierra 2500HD, 3500 HD with 6.0L gas engines. Fits Extra Cab/Standard Bed Only.

Overview

This Force II® cat-back exhaust system is for 2011-2015 GM 2500HD/3500HD extended cab/short bed trucks with the 6.0L gas engine, and is perfect for the person looking for mild to moderate sound levels with all of the performance benefits that you would expect from Flowmaster®. This bolt-on emissions legal system features a 50 Series Big Block™ muffler, mandrel-bent 3.50-inch stainless steel tubing, a polished 4.00-inch stainless steel tip embossed with the Flowmaster logo. The system is covered by Flowmaster's Lifetime Limited Warranty and includes all necessary parts, hardware and instructions for an easy installation you can do at home.

Features:

  • Dyno Tuned For Maximum Performance
  • Uses the Factory Hanger Locations
  • Featuring Delta Flow Technology
  • Stainless Steel Construction
  • Mandrel-bent Construction
  • Lifetime Limited Warranty
  • Easy Installation

Specs

2WD/4WDRWD/4WD
BrandFlowmaster
California Proposition 65 Chemical NameChromium (hexavalent compounds)
Nickel (Metallic)
California Proposition 65 RequiredYes
Emission Code5
Exhaust Pipe Bend TypeAssorted
Exhaust Pipe Max Diameter (in)2.5
Exhaust SeriesForce II
Heat ShieldNo
Inlet Diameter (in)3.5
MaterialStainless Steel
Muffler Part NumberKit Only
Muffler Quantity1
Muffler Series50 Series Big Block
Outlet Diameter (in)3.5
Product TypeExhaust Systems / Kits
Single DualSingle
Sound LevelMild/Moderate Sound
System TypeCat-back System
Tip Diameter (in)4
Tip Length (in)10
Tip Quantity1
Tubing Diameter (in)3.5
Part Number817640

Emissions

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.

Tech Resources

Fits 2011-2015 Chevrolet Silverado, GMC Sierra 2500HD, 3500 HD with 6.0L gas engines. Fits Extra Cab/Standard Bed Only.

Applications

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