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Flowmaster American Thunder Axle-Back Exhaust System with Super Mufflers

(2011-2014 Ford Mustang; 2016-2024 Chevrolet Camaro)

Manufacturer

Picture for manufacturer Flowmaster

Part Number

2 part numbers · from $779.95
6 reviews
Sale Price

from $779.95

In Stock (8)

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Usually delivered within 2 days

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Product Details

The Flowmaster American Thunder Axle-Back Exhaust System pairs Flowmaster Super Series mufflers with a bolt-on axle-back design. It gives your vehicle a deeper, more aggressive exhaust note and improves exhaust flow over a restrictive factory system. If you're looking for an axle-back exhaust or performance muffler upgrade, this line is built to deliver the classic Flowmaster tone.

Key Features:

  • Super Series mufflers: Flowmaster's signature chambered muffler design produces a deep, powerful sound.
  • Axle-back design: Replaces the rear section of the exhaust behind the axle and keeps the factory catalytic converter and mid-pipe in place.
  • Improved exhaust flow: Reduces restriction to support better exhaust flow and engine response.
  • Durable construction: Built from corrosion-resistant steel for long service life.
  • Bolt-on installation: Designed to install with common hand tools and no cutting or welding in most applications.

Flowmaster has been a well-known name in performance exhaust since the 1980s. The American Thunder line gives you a straightforward way to add sound and a performance look to your vehicle. Select the correct configuration from the options listed on this page.

Products specifications

Fits

2011-2014 Ford Mustang; 2016-2024 Chevrolet Camaro

Select yours to see vehicle-specific options.

Select & Customize

2 items

Picture of Flowmaster 817744 American Thunder Axle-Back Exhaust System with Super Mufflers - 44 Picture of Flowmaster 817744 American Thunder Axle-Back Exhaust System with Super Mufflers - 44 Picture of Flowmaster 817744 American Thunder Axle-Back Exhaust System with Super Mufflers - 44
Flowmaster 817744 American Thunder Axle-Back Exhaust System with Super Mufflers - 44
Exhaust
Description
Specifications
BrandFlowmaster
California Proposition 65 Chemical NameChromium (hexavalent compounds)
California Proposition 65 Chemical NameNickel (Metallic)
California Proposition 65 RequiredYes
Catalytic Converter Quantity0
CategoryExhaust
Clamping TypeFlat Band
Clamps IncludedYes
Drive2WD
Emission Code5
Exhaust SeriesAmerican Thunder
Exhaust Tip ColorSilver
Exhaust Tip ConnectionWelded
Exhaust Tip CutAngled
Exhaust Tip EdgeAngle Cut
Exhaust Tip FinishPolished
Exhaust Tip IntercooledNo
Exhaust Tip Length5.25
Exhaust Tip Material304 Stainless Steel
Exhaust Tip Quantity2
Exhaust Tip ResonatedNo
Exhaust Tip ShapeRound
Exhaust Tip WallDouble Wall
Exit StyleDual Out Rear
FinishNatural
Gasket Or Seal IncludedNo
Grade TypePerformance
Hangers IncludedYes
Inlet Diameter3.00
Inlet TypeClamp-On
Mount TypeUses Factory Hangers
Mounting Bracket IncludedNo
Muffler (Left) Body Width9.50
Muffler (Left) TypeChambered
Muffler (Right) TypeChambered
Muffler Body Length13.25
Muffler Body Material409 Stainless Steel
Muffler Body ShapeOval
Muffler FinishBlack High-Temperature Paint Finish
Muffler Flanged InletNo
Muffler Flanged OutletNo
Muffler Inlet ConnectionSlip-Fit
Muffler Outlet Quantity1
muffler part numberKit Only
Muffler Quantity2
Muffler SeriesSuper 44 Series
Muffler TypeChambered
Pipe ColorBlack
Pipe Material409 Stainless Steel
Product TypeExhaust System
Sound LevelAggressive / Moderate
Spring Bolt Kit IncludedNo
Sub CategoryExhaust and Tail Pipes
Tail Pipe Quantity2
Tail Pipe QuantityDual
Tail Pipe Tapered OutletNo
Tip LogoEmbossed
TypeAxle-Back
Valve IncludedNo
Valve TypeNot Applicable
WarningCalifornia Proposition 65
$949.95
PART NUMBER: 817744
In Stock (6)
Usually delivered within 2 days
Picture of Flowmaster 817588 American Thunder Axle-Back Exhaust System with Super Mufflers - 44 Picture of Flowmaster 817588 American Thunder Axle-Back Exhaust System with Super Mufflers - 44 Picture of Flowmaster 817588 American Thunder Axle-Back Exhaust System with Super Mufflers - 44 Picture of Flowmaster 817588 American Thunder Axle-Back Exhaust System with Super Mufflers - 44 Picture of Flowmaster 817588 American Thunder Axle-Back Exhaust System with Super Mufflers - 44
Flowmaster 817588 American Thunder Axle-Back Exhaust System with Super Mufflers - 44
Exhaust
Description
Specifications
BrandFlowmaster
California Proposition 65 Chemical NameNickel (Metallic)
California Proposition 65 Chemical NameChromium (hexavalent compounds)
California Proposition 65 RequiredYes
Catalytic Converter Quantity0
CategoryExhaust
Clamping TypeFlat Band
Clamps IncludedYes
Drive2WD
Emission Code5
Exhaust SeriesAmerican Thunder
Exhaust Tip ColorSilver
Exhaust Tip ConnectionWelded
Exhaust Tip CutAngled
Exhaust Tip EdgeRolled Edge Angle Cut
Exhaust Tip FinishPolished
Exhaust Tip IntercooledNo
Exhaust Tip Length5.25
Exhaust Tip Material304 Stainless Steel
Exhaust Tip Quantity2
Exhaust Tip ResonatedNo
Exhaust Tip ShapeRound
Exhaust Tip WallSingle Wall
Exit StyleDual Out Rear
FinishNatural
Gasket Or Seal IncludedNo
Grade TypePerformance
Hangers IncludedYes
Heat Shield IncludedNo
Inlet Diameter2.75
Inlet TypeClamp-On
Mounting Bracket IncludedNo
Muffler (Left) Body Width9.50
Muffler (Left) TypeChambered
Muffler (Right) TypeChambered
Muffler Body Material409 Stainless Steel
Muffler Body ShapeOval
Muffler FinishBlack High-Temperature Paint Finish
Muffler Flanged InletNo
Muffler Flanged OutletNo
Muffler Outlet Quantity1
muffler part numberKit Only
Muffler Quantity2
Muffler SeriesSuper 44 Series
Muffler TypeChambered
Pipe ColorBlack
Pipe Material409 Stainless Steel
Product TypeExhaust System
Sound LevelAggressive
Spring Bolt Kit IncludedNo
Sub CategoryExhaust and Tail Pipes
Tail Pipe Quantity2
Tail Pipe QuantityDual
Tail Pipe Tapered OutletNo
TypeAxle-Back
Valve IncludedNo
Valve TypeNot Applicable
WarningCalifornia Proposition 65
$779.95
PART NUMBER: 817588
2 left at this price
Usually delivered within 2 days

Select & Customize

Takes too long too receive. Now the female connector will not connect. I trying to return item and a refund.

Prompt and correct.

Quick, easy and convenient.

Easy website to find and purchase parts from.

Quick and easy

Easy to Navigate and seems like a good company

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