Clearance CAT Banner APR 2021
  See more parts for your Chevrolet Silverado 1500

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

$877.00 Sale:$788.95

Flowmaster

Model #817435

Free Shipping

In Stock

Help me decide

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 is looking for a stainless steel Catback exhaust system with an aggressive exterior tone and moderate interior tone. The American Thunder® system is heavy 16 gauge mandrel-bent stainless steel tubing for durability and maximum performance. Includes a stainless steel Super 50™ Series performance muffler for that perfect blend of a deep aggressive exterior sound, with a moderate interior tone that won't drive you out of the cab when having a conversation. The dual 2.50-inch tailpipes clear the factory spare tire and give you two choices of exit locations. Straight out the back for that true dual look, or exiting out each side behind the rear wheels, which is ideal for towing. The system is finished off with a pair of 3.00-inch diameter highly polished 304 stainless steel tips embossed with the Flowmaster® name. Designed for an easy fit, these systems include all necessary parts, hardware and instructions for an easy installation you can do at home. Notes: Fits standard cab/short bed models only. *Fits 2007 Classic body only

Features:

  • Includes Hangers and Hardware for an Easy Installation
  • Mandrel-bent 16 Gauge Stainless Steel Tubing
  • Moderate to Aggressive Exterior Exhaust Tone
  • Connects After Factory Catalytic Converter
  • Super 50 Series Performance Muffler
  • 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: American Thunder Kit
  • Exit Position: Dual Out the Sides
  • Heat Shield: No
  • Inlet Diameter (in): 3
  • Material: Stainless Steel
  • Muffler Part Number: Kit Only
  • Muffler Quantity: 1
  • Muffler Series: Super 50 Series
  • Outlet Diameter (in): 2.5
  • Product Type: Exhaust Systems / Kits
  • Single Dual: Dual
  • Sound Level: Moderate/Aggressive Sound
  • System Type: Catback System
  • Tip Diameter (in): 3
  • Tip Quantity: 2
  • Tubing Diameter (in): 2.5
  • Warning: California Proposition 65
Notes:
  • Fits 1999-2007* (*2007 Classic body only) Chevrolet Silverado/GMC Sierra 1500 with 4.8L, 5.3L engine. Standard cab/short bed models.

Proposition 65

/!\ warningWARNING: Cancer and Reproductive Harm

https://www.P65Warnings.ca.gov

Vehicle Engine Notes
1999-2005
Chevrolet Silverado 1500
Base
8 Cylinder 4.8 Liter
  • Single; Dual Out The Sides Exit; Incl. 2.5in. Tubing/Super 50 Series(TM) Muffler/3 in. Logo Embossed Stainless Tips; 409 Stainless Steel;50 State Legal / California Emissions Compliant
  • With Flanged Catalytic Converter
1999-2005
Chevrolet Silverado 1500
Base
8 Cylinder 5.3 Liter
  • Single; Dual Out The Sides Exit; Incl. 2.5in. Tubing/Super 50 Series(TM) Muffler/3 in. Logo Embossed Stainless Tips; 409 Stainless Steel;50 State Legal / California Emissions Compliant
  • With Flanged Catalytic Converter
1999-2006
Chevrolet Silverado 1500
LS
8 Cylinder 4.8 Liter
  • Single; Dual Out The Sides Exit; Incl. 2.5in. Tubing/Super 50 Series(TM) Muffler/3 in. Logo Embossed Stainless Tips; 409 Stainless Steel;50 State Legal / California Emissions Compliant
  • With Flanged Catalytic Converter
1999-2006
Chevrolet Silverado 1500
LS
8 Cylinder 5.3 Liter
  • Single; Dual Out The Sides Exit; Incl. 2.5in. Tubing/Super 50 Series(TM) Muffler/3 in. Logo Embossed Stainless Tips; 409 Stainless Steel;50 State Legal / California Emissions Compliant
  • With Flanged Catalytic Converter
2006
Chevrolet Silverado 1500
LT
8 Cylinder 4.8 Liter
  • Single; Dual Out The Sides Exit; Incl. 2.5in. Tubing/Super 50 Series(TM) Muffler/3 in. Logo Embossed Stainless Tips; 409 Stainless Steel;50 State Legal / California Emissions Compliant
  • With Flanged Catalytic Converter
2006
Chevrolet Silverado 1500
LT
8 Cylinder 5.3 Liter
  • Single; Dual Out The Sides Exit; Incl. 2.5in. Tubing/Super 50 Series(TM) Muffler/3 in. Logo Embossed Stainless Tips; 409 Stainless Steel;50 State Legal / California Emissions Compliant
  • With Flanged Catalytic Converter
2003-2004, 2006
Chevrolet Silverado 1500
WT
8 Cylinder 4.8 Liter
  • Single; Dual Out The Sides Exit; Incl. 2.5in. Tubing/Super 50 Series(TM) Muffler/3 in. Logo Embossed Stainless Tips; 409 Stainless Steel;50 State Legal / California Emissions Compliant
  • With Flanged Catalytic Converter
2003-2004, 2006
Chevrolet Silverado 1500
WT
8 Cylinder 5.3 Liter
  • Single; Dual Out The Sides Exit; Incl. 2.5in. Tubing/Super 50 Series(TM) Muffler/3 in. Logo Embossed Stainless Tips; 409 Stainless Steel;50 State Legal / California Emissions Compliant
  • With Flanged Catalytic Converter
2004
Chevrolet Silverado 1500
Z71
8 Cylinder 4.8 Liter
  • Single; Dual Out The Sides Exit; Incl. 2.5in. Tubing/Super 50 Series(TM) Muffler/3 in. Logo Embossed Stainless Tips; 409 Stainless Steel;50 State Legal / California Emissions Compliant
  • With Flanged Catalytic Converter
2004
Chevrolet Silverado 1500
Z71
8 Cylinder 5.3 Liter
  • Single; Dual Out The Sides Exit; Incl. 2.5in. Tubing/Super 50 Series(TM) Muffler/3 in. Logo Embossed Stainless Tips; 409 Stainless Steel;50 State Legal / California Emissions Compliant
  • With Flanged Catalytic Converter
2007
Chevrolet Silverado 1500 Classic
LS
8 Cylinder 4.8 Liter
  • Single; Dual Out The Sides Exit; Incl. 2.5in. Tubing/Super 50 Series(TM) Muffler/3 in. Logo Embossed Stainless Tips; 409 Stainless Steel;50 State Legal / California Emissions Compliant
  • With Flanged Catalytic Converter
2007
Chevrolet Silverado 1500 Classic
LS
8 Cylinder 5.3 Liter
  • Single; Dual Out The Sides Exit; Incl. 2.5in. Tubing/Super 50 Series(TM) Muffler/3 in. Logo Embossed Stainless Tips; 409 Stainless Steel;50 State Legal / California Emissions Compliant
  • With Flanged Catalytic Converter
2007
Chevrolet Silverado 1500 Classic
LT
8 Cylinder 4.8 Liter
  • Single; Dual Out The Sides Exit; Incl. 2.5in. Tubing/Super 50 Series(TM) Muffler/3 in. Logo Embossed Stainless Tips; 409 Stainless Steel;50 State Legal / California Emissions Compliant
  • With Flanged Catalytic Converter
2007
Chevrolet Silverado 1500 Classic
LT
8 Cylinder 5.3 Liter
  • Single; Dual Out The Sides Exit; Incl. 2.5in. Tubing/Super 50 Series(TM) Muffler/3 in. Logo Embossed Stainless Tips; 409 Stainless Steel;50 State Legal / California Emissions Compliant
  • With Flanged Catalytic Converter
2007
Chevrolet Silverado 1500 Classic
WT
8 Cylinder 4.8 Liter
  • Single; Dual Out The Sides Exit; Incl. 2.5in. Tubing/Super 50 Series(TM) Muffler/3 in. Logo Embossed Stainless Tips; 409 Stainless Steel;50 State Legal / California Emissions Compliant
  • With Flanged Catalytic Converter
2007
Chevrolet Silverado 1500 Classic
WT
8 Cylinder 5.3 Liter
  • Single; Dual Out The Sides Exit; Incl. 2.5in. Tubing/Super 50 Series(TM) Muffler/3 in. Logo Embossed Stainless Tips; 409 Stainless Steel;50 State Legal / California Emissions Compliant
  • With Flanged Catalytic Converter
2002-2005
GMC Sierra 1500
Base
8 Cylinder 4.8 Liter
  • Single; Dual Out The Sides Exit; Incl. 2.5in. Tubing/Super 50 Series(TM) Muffler/3 in. Logo Embossed Stainless Tips; 409 Stainless Steel;50 State Legal / California Emissions Compliant
  • With Flanged Catalytic Converter
2002-2005
GMC Sierra 1500
Base
8 Cylinder 5.3 Liter
  • Single; Dual Out The Sides Exit; Incl. 2.5in. Tubing/Super 50 Series(TM) Muffler/3 in. Logo Embossed Stainless Tips; 409 Stainless Steel;50 State Legal / California Emissions Compliant
  • With Flanged Catalytic Converter
2002
GMC Sierra 1500
HT
8 Cylinder 4.8 Liter
  • Single; Dual Out The Sides Exit; Incl. 2.5in. Tubing/Super 50 Series(TM) Muffler/3 in. Logo Embossed Stainless Tips; 409 Stainless Steel;50 State Legal / California Emissions Compliant
  • With Flanged Catalytic Converter
2002
GMC Sierra 1500
HT
8 Cylinder 5.3 Liter
  • Single; Dual Out The Sides Exit; Incl. 2.5in. Tubing/Super 50 Series(TM) Muffler/3 in. Logo Embossed Stainless Tips; 409 Stainless Steel;50 State Legal / California Emissions Compliant
  • With Flanged Catalytic Converter
1999-2003, 2006
GMC Sierra 1500
SL
8 Cylinder 4.8 Liter
  • Single; Dual Out The Sides Exit; Incl. 2.5in. Tubing/Super 50 Series(TM) Muffler/3 in. Logo Embossed Stainless Tips; 409 Stainless Steel;50 State Legal / California Emissions Compliant
  • With Flanged Catalytic Converter
1999-2003, 2006
GMC Sierra 1500
SL
8 Cylinder 5.3 Liter
  • Single; Dual Out The Sides Exit; Incl. 2.5in. Tubing/Super 50 Series(TM) Muffler/3 in. Logo Embossed Stainless Tips; 409 Stainless Steel;50 State Legal / California Emissions Compliant
  • With Flanged Catalytic Converter
1999-2006
GMC Sierra 1500
SLE
8 Cylinder 4.8 Liter
  • Single; Dual Out The Sides Exit; Incl. 2.5in. Tubing/Super 50 Series(TM) Muffler/3 in. Logo Embossed Stainless Tips; 409 Stainless Steel;50 State Legal / California Emissions Compliant
  • With Flanged Catalytic Converter
1999-2006
GMC Sierra 1500
SLE
8 Cylinder 5.3 Liter
  • Single; Dual Out The Sides Exit; Incl. 2.5in. Tubing/Super 50 Series(TM) Muffler/3 in. Logo Embossed Stainless Tips; 409 Stainless Steel;50 State Legal / California Emissions Compliant
  • With Flanged Catalytic Converter
2003-2006
GMC Sierra 1500
WT
8 Cylinder 4.8 Liter
  • Single; Dual Out The Sides Exit; Incl. 2.5in. Tubing/Super 50 Series(TM) Muffler/3 in. Logo Embossed Stainless Tips; 409 Stainless Steel;50 State Legal / California Emissions Compliant
  • With Flanged Catalytic Converter
2003-2006
GMC Sierra 1500
WT
8 Cylinder 5.3 Liter
  • Single; Dual Out The Sides Exit; Incl. 2.5in. Tubing/Super 50 Series(TM) Muffler/3 in. Logo Embossed Stainless Tips; 409 Stainless Steel;50 State Legal / California Emissions Compliant
  • With Flanged Catalytic Converter
2007
GMC Sierra 1500 Classic
SL
8 Cylinder 4.8 Liter
  • Single; Dual Out The Sides Exit; Incl. 2.5in. Tubing/Super 50 Series(TM) Muffler/3 in. Logo Embossed Stainless Tips; 409 Stainless Steel;50 State Legal / California Emissions Compliant
  • With Flanged Catalytic Converter
2007
GMC Sierra 1500 Classic
SL
8 Cylinder 5.3 Liter
  • Single; Dual Out The Sides Exit; Incl. 2.5in. Tubing/Super 50 Series(TM) Muffler/3 in. Logo Embossed Stainless Tips; 409 Stainless Steel;50 State Legal / California Emissions Compliant
  • With Flanged Catalytic Converter
2007
GMC Sierra 1500 Classic
SLE
8 Cylinder 4.8 Liter
  • Single; Dual Out The Sides Exit; Incl. 2.5in. Tubing/Super 50 Series(TM) Muffler/3 in. Logo Embossed Stainless Tips; 409 Stainless Steel;50 State Legal / California Emissions Compliant
  • With Flanged Catalytic Converter
2007
GMC Sierra 1500 Classic
SLE
8 Cylinder 5.3 Liter
  • Single; Dual Out The Sides Exit; Incl. 2.5in. Tubing/Super 50 Series(TM) Muffler/3 in. Logo Embossed Stainless Tips; 409 Stainless Steel;50 State Legal / California Emissions Compliant
  • With Flanged Catalytic Converter
2007
GMC Sierra 1500 Classic
WT
8 Cylinder 4.8 Liter
  • Single; Dual Out The Sides Exit; Incl. 2.5in. Tubing/Super 50 Series(TM) Muffler/3 in. Logo Embossed Stainless Tips; 409 Stainless Steel;50 State Legal / California Emissions Compliant
  • With Flanged Catalytic Converter
2007
GMC Sierra 1500 Classic
WT
8 Cylinder 5.3 Liter
  • Single; Dual Out The Sides Exit; Incl. 2.5in. Tubing/Super 50 Series(TM) Muffler/3 in. Logo Embossed Stainless Tips; 409 Stainless Steel;50 State Legal / California Emissions Compliant
  • With Flanged Catalytic Converter

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

Warranty Information

Click to view the Warranty Information here

Installation Instructions

Click to view the Installation Instructions here

Check out these other great products