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Flowmaster Catback System 409S - Dual Rear/Side Exit - American Thunder - Moderate Sound

$922.00 Sale:$828.95

Flowmaster

Model #817470

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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.

For the person who wants the look of a traditional dual exhaust system with all the benefits that a Flowmaster® Catback exhaust system provides. The American Thunder® exhaust systems are the perfect choice for the person wanting a deep powerful tone outside, with a moderate increase of tone inside the cab. The exhaust system features all mandrel-bent stainless steel tubing flowing into a Scavenger Y-pipe flowing into a 70 Series™ performance muffler giving a deep tone without alot of interior resonance. The dual tailpipes can be configured for either dual out the rear under the bumper, or dual out the sides which is best suited for towing. Like all Flowmaster systems, the benefits include improved throttle response, power and mileage. Designed for an easy fit, these systems include all necessary parts and hardware for an easy installation and is covered by our Lifetime Limited Warranty.

Features:

  • Includes Hangers and Hardware for an Easy Installation
  • Mandrel-bent 16 Gauge Stainless Steel Tubing
  • Connects After Factory Catalytic Converter
  • Covered by our Lifetime Limited Warranty
  • Deep Powerful Exterior Exhaust Tone
  • 70 Series Performance Muffler
  • Includes all Hardware
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: American Thunder
  • Exit Position: Dual Out Rear / Dual Out Side
  • Heat Shield: No
  • Inlet Diameter (in): 2
  • Material: Stainless Steel
  • Muffler Part Number: Kit Only
  • Muffler Quantity: 1
  • Muffler Series: 70 Series Big Block
  • Outlet Diameter (in): 2.5
  • Product Type: Exhaust Systems / Kits
  • Single Dual: Dual
  • Sound Level: Moderate Sound
  • System Type: Catback System
  • Tip Diameter (in): 3
  • Tip Quantity: 2
  • Tubing Diameter (in): 2.5
  • Warning: California Proposition 65
Notes:
  • Fits 1996-1999 Chevrolet Silverado, GMC Sierra 1500 trucks with the 5.7L engine using dual catalytic converters, fits extended cab/short bed configuration.

Proposition 65

/!\ warningWARNING: Cancer and Reproductive Harm

https://www.P65Warnings.ca.gov

Vehicle Engine Notes
1999
Chevrolet C1500

8 Cylinder 5.7 Liter
  • Single; Dual Rear Same Side Exit; Incl. 2.5 in. Tubing/w/Dual Cats/70 Series(TM) Muffler/3.0 in. Polished Stainless Tip; Stainless Steel;50 State Legal / California Emissions Compliant
  • w/Dual Catalytic Converters
1996-1997
Chevrolet C1500
Base
8 Cylinder 5.7 Liter
  • Single; Dual Rear Same Side Exit; Incl. 2.5 in. Tubing/w/Dual Cats/70 Series(TM) Muffler/3.0 in. Polished Stainless Tip; Stainless Steel;50 State Legal / California Emissions Compliant
  • w/Dual Catalytic Converters
1996-1998
Chevrolet C1500
Cheyenne
8 Cylinder 5.7 Liter
  • Single; Dual Rear Same Side Exit; Incl. 2.5 in. Tubing/w/Dual Cats/70 Series(TM) Muffler/3.0 in. Polished Stainless Tip; Stainless Steel;50 State Legal / California Emissions Compliant
  • w/Dual Catalytic Converters
1996-1998
Chevrolet C1500
Silverado
8 Cylinder 5.7 Liter
  • Single; Dual Rear Same Side Exit; Incl. 2.5 in. Tubing/w/Dual Cats/70 Series(TM) Muffler/3.0 in. Polished Stainless Tip; Stainless Steel;50 State Legal / California Emissions Compliant
  • w/Dual Catalytic Converters
1999
Chevrolet K1500

8 Cylinder 5.7 Liter
  • Single; Dual Rear Same Side Exit; Incl. 2.5 in. Tubing/w/Dual Cats/70 Series(TM) Muffler/3.0 in. Polished Stainless Tip; Stainless Steel;50 State Legal / California Emissions Compliant
  • w/Dual Catalytic Converters
1996-1997
Chevrolet K1500
Base
8 Cylinder 5.7 Liter
  • Single; Dual Rear Same Side Exit; Incl. 2.5 in. Tubing/w/Dual Cats/70 Series(TM) Muffler/3.0 in. Polished Stainless Tip; Stainless Steel;50 State Legal / California Emissions Compliant
  • w/Dual Catalytic Converters
1996-1998
Chevrolet K1500
Cheyenne
8 Cylinder 5.7 Liter
  • Single; Dual Rear Same Side Exit; Incl. 2.5 in. Tubing/w/Dual Cats/70 Series(TM) Muffler/3.0 in. Polished Stainless Tip; Stainless Steel;50 State Legal / California Emissions Compliant
  • w/Dual Catalytic Converters
1996-1998
Chevrolet K1500
Silverado
8 Cylinder 5.7 Liter
  • Single; Dual Rear Same Side Exit; Incl. 2.5 in. Tubing/w/Dual Cats/70 Series(TM) Muffler/3.0 in. Polished Stainless Tip; Stainless Steel;50 State Legal / California Emissions Compliant
  • w/Dual Catalytic Converters
1999
GMC C1500

8 Cylinder 5.7 Liter
  • Single; Dual Rear Same Side Exit; Incl. 2.5 in. Tubing/w/Dual Cats/70 Series(TM) Muffler/3.0 in. Polished Stainless Tip; Stainless Steel;50 State Legal / California Emissions Compliant
  • w/Dual Catalytic Converters
1996-1998
GMC C1500
Sierra SL
8 Cylinder 5.7 Liter
  • Single; Dual Rear Same Side Exit; Incl. 2.5 in. Tubing/w/Dual Cats/70 Series(TM) Muffler/3.0 in. Polished Stainless Tip; Stainless Steel;50 State Legal / California Emissions Compliant
  • w/Dual Catalytic Converters
1996-1998
GMC C1500
Sierra SLE
8 Cylinder 5.7 Liter
  • Single; Dual Rear Same Side Exit; Incl. 2.5 in. Tubing/w/Dual Cats/70 Series(TM) Muffler/3.0 in. Polished Stainless Tip; Stainless Steel;50 State Legal / California Emissions Compliant
  • w/Dual Catalytic Converters
1996-1998
GMC C1500
Sierra SLT
8 Cylinder 5.7 Liter
  • Single; Dual Rear Same Side Exit; Incl. 2.5 in. Tubing/w/Dual Cats/70 Series(TM) Muffler/3.0 in. Polished Stainless Tip; Stainless Steel;50 State Legal / California Emissions Compliant
  • w/Dual Catalytic Converters
1999
GMC K1500

8 Cylinder 5.7 Liter
  • Single; Dual Rear Same Side Exit; Incl. 2.5 in. Tubing/w/Dual Cats/70 Series(TM) Muffler/3.0 in. Polished Stainless Tip; Stainless Steel;50 State Legal / California Emissions Compliant
  • w/Dual Catalytic Converters
1996-1998
GMC K1500
Sierra SL
8 Cylinder 5.7 Liter
  • Single; Dual Rear Same Side Exit; Incl. 2.5 in. Tubing/w/Dual Cats/70 Series(TM) Muffler/3.0 in. Polished Stainless Tip; Stainless Steel;50 State Legal / California Emissions Compliant
  • w/Dual Catalytic Converters
1996-1998
GMC K1500
Sierra SLE
8 Cylinder 5.7 Liter
  • Single; Dual Rear Same Side Exit; Incl. 2.5 in. Tubing/w/Dual Cats/70 Series(TM) Muffler/3.0 in. Polished Stainless Tip; Stainless Steel;50 State Legal / California Emissions Compliant
  • w/Dual Catalytic Converters
1996-1998
GMC K1500
Sierra SLT
8 Cylinder 5.7 Liter
  • Single; Dual Rear Same Side Exit; Incl. 2.5 in. Tubing/w/Dual Cats/70 Series(TM) Muffler/3.0 in. Polished Stainless Tip; Stainless Steel;50 State Legal / California Emissions Compliant
  • w/Dual Catalytic Converters

Who is Flowmaster?

Founded in 1983, Flowmaster is an aftermarket company specializing in manufacturing 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 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.” 

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 were able to improve their designs and match 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. All their exhaust systems are designed and dyno-tested, making sure that it can maximize your vehicle’s performance once installed.

Purchase Flowmaster at Vivid Racing

If you are in search of 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. 

They offer a variety of exhaust that would suit any preference. Visit Vivid Racing and check out the Flowmaster exhaust that would fit your needs.

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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