Name: Flowmaster Header-back System 409S- Dual Rear Exit - American Thunder - Aggressive Sound
Brand: Flowmaster
SKU: 151496884
Price: 968.95 USD

For the person who is looking for a complete Header-back dual exhaust system with an aggressive tone. With easy fit in mind, these systems are mandrel bent for maximum performance and include specially selected mufflers. American Thunder systems deliver a moderate to aggressive interior and exterior tone and are suited to the enthusiast who wants their performance to be heard. 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 easy installation.

Features:

H-pipe Crossover for Maximum Power and Deep Tone
Super 40 Series Mufflers for Deep Powerful Sound
Mandrel-bent 16-gauge Stainless Steel Tubing
Includes Hangers and Hardware for Installation
Moderate to Aggressive Exterior Exhaust Tone
Header-back True Dual Exhaust System
Does Not Include Header Reducers
Lifetime Limited Warranty

Specifications:

2WD/4WD: 2WD
California Proposition 65 Chemical Name: Chromium (hexavalent compounds)
California Proposition 65 Chemical Name: Nickel (Metallic)
California Proposition 65 Required: Yes
Emission Code: 3
Exhaust Series: American Thunder
Exit Position: Dual Rear Exit
Heat Shield: No
Inlet Diameter (in): 2.5
Material: Stainless Steel
Muffler Part Number: Kit Only
Muffler Quantity: 2
Muffler Series: Super 40 Series
Outlet Diameter (in): 2.5
Product Type: Exhaust Systems / Kits
Single Dual: Dual
Sound Level: Aggressive Sound
System Type: Header-back System
Tip Quantity: Not Included
Tubing Diameter (in): 2.5
Type of Exhaust: Header-Back
Warning: California Proposition 65

Notes:

Fits 1968-1972 GM A-Body with V-8 engine.

Proposition 65

$/!\ warning$ WARNING: Cancer and Reproductive Harm

https://www.P65Warnings.ca.gov

Make Vehicle	Model	Submodel	Year	Engine	Notes
1970-1972 Buick GS	GS		1970-1972	8 Cylinder 5.7 Liter	Dual; Dual Rear Exit; Incl. 2.5 in. Tubing/Super 40 Series(TM) Mufflers/H-Pipe/Hardware; 409 Stainless Steel;Legal On Non-Emissions Controlled Vehicles Or For Race Use
1968-1969 Buick GS 350	GS 350		1968-1969	8 Cylinder 5.7 Liter	Dual; Dual Rear Exit; Incl. 2.5 in. Tubing/Super 40 Series(TM) Mufflers/H-Pipe/Hardware; 409 Stainless Steel;Legal On Non-Emissions Controlled Vehicles Or For Race Use
1968-1969 Buick GS 400	GS 400		1968-1969	8 Cylinder 6.6 Liter	Dual; Dual Rear Exit; Incl. 2.5 in. Tubing/Super 40 Series(TM) Mufflers/H-Pipe/Hardware; 409 Stainless Steel;Legal On Non-Emissions Controlled Vehicles Or For Race Use
1970-1972 Buick GS 455	GS 455		1970-1972	8 Cylinder 7.5 Liter	Dual; Dual Rear Exit; Incl. 2.5 in. Tubing/Super 40 Series(TM) Mufflers/H-Pipe/Hardware; 409 Stainless Steel;Legal On Non-Emissions Controlled Vehicles Or For Race Use
1968-1969 Buick Skylark	Skylark		1968-1969	8 Cylinder 5.7 Liter	Dual; Dual Rear Exit; Incl. 2.5 in. Tubing/Super 40 Series(TM) Mufflers/H-Pipe/Hardware; 409 Stainless Steel;Legal On Non-Emissions Controlled Vehicles Or For Race Use
1968 Buick Skylark	Skylark		1968	8 Cylinder 6.6 Liter	Dual; Dual Rear Exit; Incl. 2.5 in. Tubing/Super 40 Series(TM) Mufflers/H-Pipe/Hardware; 409 Stainless Steel;Legal On Non-Emissions Controlled Vehicles Or For Race Use
1970, 1972 Buick Skylark 350	Skylark	350	1970, 1972	8 Cylinder 5.7 Liter	Dual; Dual Rear Exit; Incl. 2.5 in. Tubing/Super 40 Series(TM) Mufflers/H-Pipe/Hardware; 409 Stainless Steel;Legal On Non-Emissions Controlled Vehicles Or For Race Use
1970-1972 Buick Skylark Base	Skylark	Base	1970-1972	8 Cylinder 5.7 Liter	Dual; Dual Rear Exit; Incl. 2.5 in. Tubing/Super 40 Series(TM) Mufflers/H-Pipe/Hardware; 409 Stainless Steel;Legal On Non-Emissions Controlled Vehicles Or For Race Use
1970-1971 Buick Skylark Base	Skylark	Base	1970-1971	8 Cylinder 7.5 Liter	Dual; Dual Rear Exit; Incl. 2.5 in. Tubing/Super 40 Series(TM) Mufflers/H-Pipe/Hardware; 409 Stainless Steel;Legal On Non-Emissions Controlled Vehicles Or For Race Use
1970-1972 Buick Skylark Custom	Skylark	Custom	1970-1972	8 Cylinder 5.7 Liter	Dual; Dual Rear Exit; Incl. 2.5 in. Tubing/Super 40 Series(TM) Mufflers/H-Pipe/Hardware; 409 Stainless Steel;Legal On Non-Emissions Controlled Vehicles Or For Race Use
1970-1971 Buick Skylark Custom	Skylark	Custom	1970-1971	8 Cylinder 7.5 Liter	Dual; Dual Rear Exit; Incl. 2.5 in. Tubing/Super 40 Series(TM) Mufflers/H-Pipe/Hardware; 409 Stainless Steel;Legal On Non-Emissions Controlled Vehicles Or For Race Use
1968-1969 Buick Special	Special		1968-1969	8 Cylinder 5.7 Liter	Dual; Dual Rear Exit; Incl. 2.5 in. Tubing/Super 40 Series(TM) Mufflers/H-Pipe/Hardware; 409 Stainless Steel;Legal On Non-Emissions Controlled Vehicles Or For Race Use
1970, 1972 Chevrolet Chevelle Base	Chevelle	Base	1970, 1972	8 Cylinder 6.6 Liter	Dual; Dual Rear Exit; Incl. 2.5 in. Tubing/Super 40 Series(TM) Mufflers/H-Pipe/Hardware; 409 Stainless Steel;Legal On Non-Emissions Controlled Vehicles Or For Race Use
1970-1972 Chevrolet Chevelle Base	Chevelle	Base	1970-1972	8 Cylinder 5.7 Liter	Dual; Dual Rear Exit; Incl. 2.5 in. Tubing/Super 40 Series(TM) Mufflers/H-Pipe/Hardware; 409 Stainless Steel;Legal On Non-Emissions Controlled Vehicles Or For Race Use
1968, 1970-1972 Chevrolet Chevelle Base	Chevelle	Base	1968, 1970-1972	8 Cylinder 5.0 Liter	Dual; Dual Rear Exit; Incl. 2.5 in. Tubing/Super 40 Series(TM) Mufflers/H-Pipe/Hardware; 409 Stainless Steel;Legal On Non-Emissions Controlled Vehicles Or For Race Use
1971-1972 Chevrolet Chevelle Base	Chevelle	Base	1971-1972	8 Cylinder 7.4 Liter	Dual; Dual Rear Exit; Incl. 2.5 in. Tubing/Super 40 Series(TM) Mufflers/H-Pipe/Hardware; 409 Stainless Steel;Legal On Non-Emissions Controlled Vehicles Or For Race Use
1970-1972 Chevrolet Chevelle Malibu	Chevelle	Malibu	1970-1972	8 Cylinder 6.6 Liter	Dual; Dual Rear Exit; Incl. 2.5 in. Tubing/Super 40 Series(TM) Mufflers/H-Pipe/Hardware; 409 Stainless Steel;Legal On Non-Emissions Controlled Vehicles Or For Race Use
1969-1972 Chevrolet Chevelle Malibu	Chevelle	Malibu	1969-1972	8 Cylinder 5.7 Liter	Dual; Dual Rear Exit; Incl. 2.5 in. Tubing/Super 40 Series(TM) Mufflers/H-Pipe/Hardware; 409 Stainless Steel;Legal On Non-Emissions Controlled Vehicles Or For Race Use
1968-1972 Chevrolet Chevelle Malibu	Chevelle	Malibu	1968-1972	8 Cylinder 5.0 Liter	Dual; Dual Rear Exit; Incl. 2.5 in. Tubing/Super 40 Series(TM) Mufflers/H-Pipe/Hardware; 409 Stainless Steel;Legal On Non-Emissions Controlled Vehicles Or For Race Use
1970-1972 Chevrolet Chevelle Malibu	Chevelle	Malibu	1970-1972	8 Cylinder 7.4 Liter	Dual; Dual Rear Exit; Incl. 2.5 in. Tubing/Super 40 Series(TM) Mufflers/H-Pipe/Hardware; 409 Stainless Steel;Legal On Non-Emissions Controlled Vehicles Or For Race Use
1968-1970 Chevrolet Chevelle Malibu	Chevelle	Malibu	1968-1970	8 Cylinder 6.5 Liter	Dual; Dual Rear Exit; Incl. 2.5 in. Tubing/Super 40 Series(TM) Mufflers/H-Pipe/Hardware; 409 Stainless Steel;Legal On Non-Emissions Controlled Vehicles Or For Race Use
1968 Chevrolet Chevelle Malibu	Chevelle	Malibu	1968	8 Cylinder 5.4 Liter	Dual; Dual Rear Exit; Incl. 2.5 in. Tubing/Super 40 Series(TM) Mufflers/H-Pipe/Hardware; 409 Stainless Steel;Legal On Non-Emissions Controlled Vehicles Or For Race Use
1968 Chevrolet Chevelle Malibu	Chevelle	Malibu	1968	8 Cylinder 5.3 Liter	Dual; Dual Rear Exit; Incl. 2.5 in. Tubing/Super 40 Series(TM) Mufflers/H-Pipe/Hardware; 409 Stainless Steel;Legal On Non-Emissions Controlled Vehicles Or For Race Use
1971-1972 Chevrolet Chevelle SS	Chevelle	SS	1971-1972	8 Cylinder 6.6 Liter	Dual; Dual Rear Exit; Incl. 2.5 in. Tubing/Super 40 Series(TM) Mufflers/H-Pipe/Hardware; 409 Stainless Steel;Legal On Non-Emissions Controlled Vehicles Or For Race Use
1968-1970 Chevrolet Chevelle SS	Chevelle	SS	1968-1970	8 Cylinder 6.5 Liter	Dual; Dual Rear Exit; Incl. 2.5 in. Tubing/Super 40 Series(TM) Mufflers/H-Pipe/Hardware; 409 Stainless Steel;Legal On Non-Emissions Controlled Vehicles Or For Race Use
1968-1971 Oldsmobile 442	442		1968-1971	8 Cylinder 7.5 Liter	Dual; Dual Rear Exit; Incl. 2.5 in. Tubing/Super 40 Series(TM) Mufflers/H-Pipe/Hardware; 409 Stainless Steel;Legal On Non-Emissions Controlled Vehicles Or For Race Use
1968-1969 Oldsmobile 442	442		1968-1969	8 Cylinder 6.6 Liter	Dual; Dual Rear Exit; Incl. 2.5 in. Tubing/Super 40 Series(TM) Mufflers/H-Pipe/Hardware; 409 Stainless Steel;Legal On Non-Emissions Controlled Vehicles Or For Race Use
1972 Oldsmobile F85	F85		1972		Dual; Dual Rear Exit; Incl. 2.5 in. Tubing/Super 40 Series(TM) Mufflers/H-Pipe/Hardware; 409 Stainless Steel;Legal On Non-Emissions Controlled Vehicles Or For Race Use
1968-1971 Oldsmobile F85	F85		1968-1971	8 Cylinder 5.7 Liter	Dual; Dual Rear Exit; Incl. 2.5 in. Tubing/Super 40 Series(TM) Mufflers/H-Pipe/Hardware; 409 Stainless Steel;Legal On Non-Emissions Controlled Vehicles Or For Race Use
1970 Oldsmobile F85	F85		1970	8 Cylinder 7.5 Liter	Dual; Dual Rear Exit; Incl. 2.5 in. Tubing/Super 40 Series(TM) Mufflers/H-Pipe/Hardware; 409 Stainless Steel;Legal On Non-Emissions Controlled Vehicles Or For Race Use
1968-1972 Oldsmobile Vista Cruiser	Vista Cruiser		1968-1972		Dual; Dual Rear Exit; Incl. 2.5 in. Tubing/Super 40 Series(TM) Mufflers/H-Pipe/Hardware; 409 Stainless Steel;Legal On Non-Emissions Controlled Vehicles Or For Race Use
1968, 1970-1972 Pontiac Grand Prix	Grand Prix		1968, 1970-1972		Dual; Dual Rear Exit; Incl. 2.5 in. Tubing/Super 40 Series(TM) Mufflers/H-Pipe/Hardware; 409 Stainless Steel;Legal On Non-Emissions Controlled Vehicles Or For Race Use
1969 Pontiac Grand Prix	Grand Prix		1969	8 Cylinder 6.6 Liter	Dual; Dual Rear Exit; Incl. 2.5 in. Tubing/Super 40 Series(TM) Mufflers/H-Pipe/Hardware; 409 Stainless Steel;Legal On Non-Emissions Controlled Vehicles Or For Race Use
1969 Pontiac Grand Prix	Grand Prix		1969	8 Cylinder 7.0 Liter	Dual; Dual Rear Exit; Incl. 2.5 in. Tubing/Super 40 Series(TM) Mufflers/H-Pipe/Hardware; 409 Stainless Steel;Legal On Non-Emissions Controlled Vehicles Or For Race Use
1968-1972 Pontiac GTO	GTO		1968-1972	8 Cylinder 6.6 Liter	Dual; Dual Rear Exit; Incl. 2.5 in. Tubing/Super 40 Series(TM) Mufflers/H-Pipe/Hardware; 409 Stainless Steel;Legal On Non-Emissions Controlled Vehicles Or For Race Use
1970-1972 Pontiac GTO	GTO		1970-1972	8 Cylinder 7.5 Liter	Dual; Dual Rear Exit; Incl. 2.5 in. Tubing/Super 40 Series(TM) Mufflers/H-Pipe/Hardware; 409 Stainless Steel;Legal On Non-Emissions Controlled Vehicles Or For Race Use
1968-1969, 1972 Pontiac LeMans	LeMans		1968-1969, 1972	8 Cylinder 6.6 Liter	Dual; Dual Rear Exit; Incl. 2.5 in. Tubing/Super 40 Series(TM) Mufflers/H-Pipe/Hardware; 409 Stainless Steel;Legal On Non-Emissions Controlled Vehicles Or For Race Use
1972 Pontiac LeMans	LeMans		1972	8 Cylinder 7.5 Liter	Dual; Dual Rear Exit; Incl. 2.5 in. Tubing/Super 40 Series(TM) Mufflers/H-Pipe/Hardware; 409 Stainless Steel;Legal On Non-Emissions Controlled Vehicles Or For Race Use
1968-1969, 1972 Pontiac LeMans	LeMans		1968-1969, 1972	8 Cylinder 5.7 Liter	Dual; Dual Rear Exit; Incl. 2.5 in. Tubing/Super 40 Series(TM) Mufflers/H-Pipe/Hardware; 409 Stainless Steel;Legal On Non-Emissions Controlled Vehicles Or For Race Use
1970-1971 Pontiac LeMans Base	LeMans	Base	1970-1971	8 Cylinder 6.6 Liter	Dual; Dual Rear Exit; Incl. 2.5 in. Tubing/Super 40 Series(TM) Mufflers/H-Pipe/Hardware; 409 Stainless Steel;Legal On Non-Emissions Controlled Vehicles Or For Race Use
1970-1971 Pontiac LeMans Base	LeMans	Base	1970-1971	8 Cylinder 7.5 Liter	Dual; Dual Rear Exit; Incl. 2.5 in. Tubing/Super 40 Series(TM) Mufflers/H-Pipe/Hardware; 409 Stainless Steel;Legal On Non-Emissions Controlled Vehicles Or For Race Use
1970-1971 Pontiac LeMans Base	LeMans	Base	1970-1971	8 Cylinder 5.7 Liter	Dual; Dual Rear Exit; Incl. 2.5 in. Tubing/Super 40 Series(TM) Mufflers/H-Pipe/Hardware; 409 Stainless Steel;Legal On Non-Emissions Controlled Vehicles Or For Race Use
1970, 1973 Pontiac LeMans Safari	LeMans	Safari	1970, 1973	8 Cylinder 5.7 Liter	Dual; Dual Rear Exit; Incl. 2.5 in. Tubing/Super 40 Series(TM) Mufflers/H-Pipe/Hardware; 409 Stainless Steel;Legal On Non-Emissions Controlled Vehicles Or For Race Use
1970 Pontiac LeMans Safari	LeMans	Safari	1970	8 Cylinder 6.6 Liter	Dual; Dual Rear Exit; Incl. 2.5 in. Tubing/Super 40 Series(TM) Mufflers/H-Pipe/Hardware; 409 Stainless Steel;Legal On Non-Emissions Controlled Vehicles Or For Race Use
1970 Pontiac LeMans Safari	LeMans	Safari	1970	8 Cylinder 7.5 Liter	Dual; Dual Rear Exit; Incl. 2.5 in. Tubing/Super 40 Series(TM) Mufflers/H-Pipe/Hardware; 409 Stainless Steel;Legal On Non-Emissions Controlled Vehicles Or For Race Use
1970-1971 Pontiac LeMans Sport	LeMans	Sport	1970-1971	8 Cylinder 6.6 Liter	Dual; Dual Rear Exit; Incl. 2.5 in. Tubing/Super 40 Series(TM) Mufflers/H-Pipe/Hardware; 409 Stainless Steel;Legal On Non-Emissions Controlled Vehicles Or For Race Use
1970-1971 Pontiac LeMans Sport	LeMans	Sport	1970-1971	8 Cylinder 7.5 Liter	Dual; Dual Rear Exit; Incl. 2.5 in. Tubing/Super 40 Series(TM) Mufflers/H-Pipe/Hardware; 409 Stainless Steel;Legal On Non-Emissions Controlled Vehicles Or For Race Use
1970-1971 Pontiac LeMans Sport	LeMans	Sport	1970-1971	8 Cylinder 5.7 Liter	Dual; Dual Rear Exit; Incl. 2.5 in. Tubing/Super 40 Series(TM) Mufflers/H-Pipe/Hardware; 409 Stainless Steel;Legal On Non-Emissions Controlled Vehicles Or For Race Use
1971 Pontiac LeMans T37	LeMans	T37	1971	8 Cylinder 5.7 Liter	Dual; Dual Rear Exit; Incl. 2.5 in. Tubing/Super 40 Series(TM) Mufflers/H-Pipe/Hardware; 409 Stainless Steel;Legal On Non-Emissions Controlled Vehicles Or For Race Use
1968-1969 Pontiac Tempest	Tempest		1968-1969	8 Cylinder 5.7 Liter	Dual; Dual Rear Exit; Incl. 2.5 in. Tubing/Super 40 Series(TM) Mufflers/H-Pipe/Hardware; 409 Stainless Steel;Legal On Non-Emissions Controlled Vehicles Or For Race Use
1970 Pontiac Tempest Base	Tempest	Base	1970	8 Cylinder 5.7 Liter	Dual; Dual Rear Exit; Incl. 2.5 in. Tubing/Super 40 Series(TM) Mufflers/H-Pipe/Hardware; 409 Stainless Steel;Legal On Non-Emissions Controlled Vehicles Or For Race Use

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