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Flowmaster Catback System 409S - Single Side Exit - Force II - Mild/Moderate Sound

$814.00 Sale:$731.95

Flowmaster

Model #817451

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Shopper Award

This product is for Racing Competition only and is not legal for use in highway or street vehicles or other non-racing competition off-road vehicles.

Purchasing this product requires you to sign our Vehicle Compliance Waiver here.

This Force II® Catback 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™ muffler for a moderate tone inside and outside the truck. The tailpipe exits behind the right rear tire with a large 4.00-inch polished stainless steel tip and uses the factory hanger locations, making for easy installation. Includes all necessary parts, hardware, and detailed instructions for an easy installation you can do at home. Comes with our Limited Lifetime Warranty.

Features:

  • Includes Hangers and Hardware for and Easy Installation
  • 3.50-inch Mandrel bent Stainless Steel Tubing
  • Connects After Factory Catalytic Converter
  • Uses the Factory Hanger Locations
  • Moderate Exterior Exhaust Tone
  • Lifetime Limited Warranty
Specifications:
  • 2WD/4WD: 2WD/4WD
  • California Proposition 65 Chemical Name: Chromium (hexavalent compounds)
  • California Proposition 65 Chemical Name: Nickel (Metallic)
  • California Proposition 65 Required: Yes
  • Emission Code: 5
  • Exhaust Series: Force II
  • Exit Position: Single Side Exit
  • Heat Shield: No
  • Inlet Diameter (in): 3.5
  • Material: Stainless Steel
  • Muffler Part Number: Kit Only
  • Muffler Quantity: 1
  • Muffler Series: 50 Series Big Block
  • Outlet Diameter (in): 3.5
  • Product Type: Exhaust Systems / Kits
  • Single Dual: Single
  • Sound Level: Mild/Moderate Sound
  • System Type: Catback System
  • Tip Diameter (in): 4
  • Tip Quantity: 1
  • Tubing Diameter (in): 3.5
  • Warning: California Proposition 65
Notes:
  • Fits 2011-2019 Chevrolet/GMC 2500/3500HD trucks with 6.0L engine. Fits Crew cab/short bed.

Proposition 65

/!\ warningWARNING: Cancer and Reproductive Harm

https://www.P65Warnings.ca.gov

Vehicle Engine Notes
2011-2014, 2016-2019
Chevrolet Silverado 2500 HD

8 Cylinder 6.0 Liter
  • Single; Single Side Exit; Incl. 3.5 in. Tubing/50 Series(TM) Big Block Muffler/4 in. Logo Embossed Stainless Tip; 409 Stainless Steel;50 State Legal / California Emissions Compliant
2015
Chevrolet Silverado 2500 HD
High Country
8 Cylinder 6.0 Liter
  • Single; Single Side Exit; Incl. 3.5 in. Tubing/50 Series(TM) Big Block Muffler/4 in. Logo Embossed Stainless Tip; 409 Stainless Steel;50 State Legal / California Emissions Compliant
2015
Chevrolet Silverado 2500 HD
LT
8 Cylinder 6.0 Liter
  • Single; Single Side Exit; Incl. 3.5 in. Tubing/50 Series(TM) Big Block Muffler/4 in. Logo Embossed Stainless Tip; 409 Stainless Steel;50 State Legal / California Emissions Compliant
2015
Chevrolet Silverado 2500 HD
LTZ
8 Cylinder 6.0 Liter
  • Single; Single Side Exit; Incl. 3.5 in. Tubing/50 Series(TM) Big Block Muffler/4 in. Logo Embossed Stainless Tip; 409 Stainless Steel;50 State Legal / California Emissions Compliant
2015
Chevrolet Silverado 2500 HD
WT
8 Cylinder 6.0 Liter
  • Single; Single Side Exit; Incl. 3.5 in. Tubing/50 Series(TM) Big Block Muffler/4 in. Logo Embossed Stainless Tip; 409 Stainless Steel;50 State Legal / California Emissions Compliant
2011-2014, 2016-2019
Chevrolet Silverado 3500 HD

8 Cylinder 6.0 Liter
  • Single; Single Side Exit; Incl. 3.5 in. Tubing/50 Series(TM) Big Block Muffler/4 in. Logo Embossed Stainless Tip; 409 Stainless Steel;50 State Legal / California Emissions Compliant
2015
Chevrolet Silverado 3500 HD
LT
8 Cylinder 6.0 Liter
  • Single; Single Side Exit; Incl. 3.5 in. Tubing/50 Series(TM) Big Block Muffler/4 in. Logo Embossed Stainless Tip; 409 Stainless Steel;50 State Legal / California Emissions Compliant
2015
Chevrolet Silverado 3500 HD
LTZ
8 Cylinder 6.0 Liter
  • Single; Single Side Exit; Incl. 3.5 in. Tubing/50 Series(TM) Big Block Muffler/4 in. Logo Embossed Stainless Tip; 409 Stainless Steel;50 State Legal / California Emissions Compliant
2015
Chevrolet Silverado 3500 HD
WT
8 Cylinder 6.0 Liter
  • Single; Single Side Exit; Incl. 3.5 in. Tubing/50 Series(TM) Big Block Muffler/4 in. Logo Embossed Stainless Tip; 409 Stainless Steel;50 State Legal / California Emissions Compliant
2014, 2016-2019
GMC Sierra 2500 HD

8 Cylinder 6.0 Liter
  • Single; Single Side Exit; Incl. 3.5 in. Tubing/50 Series(TM) Big Block Muffler/4 in. Logo Embossed Stainless Tip; 409 Stainless Steel;50 State Legal / California Emissions Compliant
2015
GMC Sierra 2500 HD
Base
8 Cylinder 6.0 Liter
  • Single; Single Side Exit; Incl. 3.5 in. Tubing/50 Series(TM) Big Block Muffler/4 in. Logo Embossed Stainless Tip; 409 Stainless Steel;50 State Legal / California Emissions Compliant
2011-2013, 2015
GMC Sierra 2500 HD
Denali
8 Cylinder 6.0 Liter
  • Single; Single Side Exit; Incl. 3.5 in. Tubing/50 Series(TM) Big Block Muffler/4 in. Logo Embossed Stainless Tip; 409 Stainless Steel;50 State Legal / California Emissions Compliant
2011-2013, 2015
GMC Sierra 2500 HD
SLE
8 Cylinder 6.0 Liter
  • Single; Single Side Exit; Incl. 3.5 in. Tubing/50 Series(TM) Big Block Muffler/4 in. Logo Embossed Stainless Tip; 409 Stainless Steel;50 State Legal / California Emissions Compliant
2011-2013, 2015
GMC Sierra 2500 HD
SLT
8 Cylinder 6.0 Liter
  • Single; Single Side Exit; Incl. 3.5 in. Tubing/50 Series(TM) Big Block Muffler/4 in. Logo Embossed Stainless Tip; 409 Stainless Steel;50 State Legal / California Emissions Compliant
2011-2013
GMC Sierra 2500 HD
WT
8 Cylinder 6.0 Liter
  • Single; Single Side Exit; Incl. 3.5 in. Tubing/50 Series(TM) Big Block Muffler/4 in. Logo Embossed Stainless Tip; 409 Stainless Steel;50 State Legal / California Emissions Compliant
2011-2019
GMC Sierra 3500 HD

8 Cylinder 6.0 Liter
  • Single; Single Side Exit; Incl. 3.5 in. Tubing/50 Series(TM) Big Block Muffler/4 in. Logo Embossed Stainless Tip; 409 Stainless Steel;50 State Legal / California Emissions Compliant

Who is Flowmaster?

Flowmaster is an aftermarket company that was founded in 1983. The company specializes in manufacturing high-performance exhaust systems for various vehicles. This includes classic muscle cars, modern sedans, trucks, jeeps, off-road vehicles, and more. 

It has since revolutionized the industry and has continued its tradition to produce high-quality exhaust parts. Today, Flowmaster has been the go-to brand of many car builders and enthusiasts worldwide and has been the market leader for years.

Pushing the Boundaries of Exhaust Design

Flowmaster has been the pioneer when it comes to developing mufflers. They produce mufflers that are quiet enough to be used legally on the streets but, at the same time, does not restrict the performance of the engine. This is why more and more people are choosing Flowmaster for their car builds as they can enjoy their vehicles on and off the streets.

An Exhaust For Any Style

The company provides its customers with the ability to choose the type of muffler they want. They offer five sound categories of their exhaust system, from quiet and discrete to something more aggressive and gives that racy sound. They can also choose between 12 designs of chambered mufflers, including their exclusively-designed “laminar-flow” muffler or “straight-through.”They also have a custom-built exhaust system for that one-of car builds.

Passionate Development Team

Flowmaster is composed of people who have years of experience in developing quality exhaust systems. Using the knowledge they acquired over the years, they improved their designs and matched it with the ever-growing technological advancement of vehicles today. 

Tried and Tested

With hundreds of installs under its belt, Flowmaster has proven itself to be a brand that delivers what it promised. In addition, all their exhaust systems are designed and dyno-tested, ensuring that they can maximize your vehicle’s performance once installed. 

Purchase Flowmaster at Vivid Racing

If you are in the market for an upgrade in your vehicle’s exhaust that would provide you with that distinct sound and improved performance, then Flowmaster is the brand for you. To know more about Flowmaster, visit Vivid Racing and check out their list of products that fit your requirement.




LIMITED WARRANTY:

This catalytic converter is warranted to be free from defects in materials andworkmanship subject to the exclusion and conditions set forth below and subject to the durational limits in this paragraph. This catalytic converter has been designed and manufactured and is warranted to meet federal Environmental Protection Agency emission requirements for 25,000 miles. The stainless steel body and the nipples alone are warranted for 5 years or 50,000 miles, whichever comesfirst. At the conclusion of the 5 year/50,000 mile or 25,000 mile period, whichever is applicable, all liability under this limited warranty shall terminate.

For full warranty information Click Here

Installation Instructions

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Warranty Information

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