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Flowmaster 817508 American Thunder Cat-Back Exhaust System

(2011-2014 Chrysler 300; 2011-2014 Chrysler Ford 300; 2011-2014 Dodge Charger; 2002-2004 Audi A4 Quattro; 1970-1971 Audi 100 Series; 1992 Audi 100 Quattro)

Part of: Flowmaster American Thunder Cat-Back Exhaust System

Other options in this family: Flowmaster 17395 Flowmaster 817568 Flowmaster 818196 Flowmaster 17213 Flowmaster 818176

Manufacturer

Picture for manufacturer Flowmaster

Part Number

817508
10 reviews
Sale Price

$1,171.95

Estimated ship date Wednesday, November 25

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Product Details

The Flowmaster 817508 American Thunder Cat-Back Exhaust System delivers an aggressive exterior exhaust tone that transforms your vehicle's sound profile. Designed to connect directly after the factory catalytic converter, this complete cat-back system provides a straightforward bolt-on upgrade that enhances both performance and acoustics.

Key Features:

  • Mandrel-bent 16-gauge stainless steel tubing for maximum exhaust flow and durability
  • Aggressive sound level designed for enthusiasts seeking a commanding exterior tone
  • Direct bolt-on installation after factory catalytic converter
  • Includes all necessary hangers and hardware for complete installation
  • Stainless steel construction resists corrosion and maintains appearance over time

Flowmaster's American Thunder series is engineered for drivers who want to make a statement with their exhaust note while maintaining reliability and quality construction. The mandrel-bent tubing ensures smooth exhaust flow without the restrictions found in crush-bent systems, helping to optimize exhaust scavenging and engine performance.

Products specifications

Fits

2011-2014 Chrysler 300; 2011-2014 Chrysler Ford 300; 2011-2014 Dodge Charger; 2002-2004 Audi A4 Quattro; 1970-1971 Audi 100 Series; 1992 Audi 100 Quattro

Tip Diameter

2.500 in.

Inlet Inside Diameter

2.500 in.

Outlet Outside Diameter

2.500 in.

System Type

Cat Back

Prop 65

WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov

California Proposition 65 Chemical Name 2

Chromium (hexavalent compounds)

California Proposition 65 Chemical Name 1

Nickel (metallic)

California Proposition 65 Chemical Name

Nickel (Metallic)

California Proposition 65 Chemical Name

Chromium (hexavalent compounds)

Heat Shield Attached

No

Material

Stainless Steel

Tubing Diameter

2.500 in.

Outlet Diameter

2.500 in.

Muffler Count

2

Exit Position

Dual Rear

Tip Quantity

2

Tail Pipe Diameter

2.500 in.

Exhaust Type

Dual

Single or Dual

Dual

Title

Flowmaster 817508 Cat-back System 409S - Dual Rear Exit - American Thunder - Aggressive Sound

Brand

Flowmaster

Catalytic Converter Quantity

0

Category

Exhaust

Clamping Type

Flat Band

Clamps Included

Yes

Drive

2WD

Drive

4WD

Emission Code

5

Exhaust Series

American Thunder

Exhaust Tip Intercooled

No

Exhaust Tip Quantity

2

Exhaust Tip Shape

Round

Exit Style

Dual Out Rear

Finish

Natural

Gasket Or Seal Included

No

Grade Type

Performance

Hangers Included

Yes

Heat Shield Included

No

Inlet Diameter

2.50

Mounting Bracket Included

No

Muffler (Left) Body Width

10.00

Muffler (Left) Type

Chambered

Muffler (Right) Type

Chambered

Muffler Body Material

409 Stainless Steel

Muffler Body Shape

Oval

Muffler Finish

Black High-Temperature Paint Finish

Muffler Flanged Inlet

No

Muffler Flanged Outlet

No

Muffler Inlet Connection

Slip-Fit

Muffler Outlet Connection

Slip-Fit

Muffler Outlet Quantity

1

muffler part number

Kit Only

Muffler Quantity

2

Muffler Series

Super 40 Series

Muffler Type

Chambered

Pipe Color

Silver

Pipe Material

409 Stainless Steel

Product Type

Exhaust System

Sound Level

Aggressive

Spring Bolt Kit Included

No

Sub Category

Exhaust and Tail Pipes

Tail Pipe Quantity

2

Tail Pipe Quantity

Dual

Tail Pipe Tapered Outlet

No

Type

Cat-Back

Valve Included

No

Valve Type

Not Applicable

Warning

California Proposition 65

Good Products, and good service.

Great delivery time and great prices. Yeah got my Foxbody parts. Thanks Autoplicity

Great besides 1 wheel was missing the center cap

Very easy access.

Great

Excellent service, incredibly fast shipping and delivery. Would DEFINITELY do business with again.

Easy to deal with, lowest price and included quick shipping.

hope shipping is fast

Easy to use website

Amazing prices and amazing shipping speed! Best all around. Will be ordering more soon!

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