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Flowmaster 817799 American Thunder Axle-Back Exhaust System with Quad Tips - 4-Inch

(2018-2023 Ford Mustang)

Manufacturer

Picture for manufacturer Flowmaster

Part Number

817799
5 reviews
Sale Price

$1,899.95

Estimated ship date Friday, November 20

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Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

The Flowmaster American Thunder Axle-Back Exhaust System delivers aggressive sound and enhanced performance through its race-proven Outlaw muffler design. Engineered for enthusiasts seeking a bold exhaust note, this system features straight-through muffler technology that's been dyno-tuned to maximize horsepower and torque gains.

Key Features:

  • Full stainless steel construction for superior durability and corrosion resistance
  • Aggressive-sounding Outlaw mufflers with straight-through design
  • Quad 4.00-inch polished 304 stainless steel tips for premium appearance
  • Utilizes factory hanger locations for direct bolt-on installation
  • Dyno-tuned for maximum performance gains
  • Designed for vehicles equipped with active performance exhaust option
  • Backed by Flowmaster's lifetime limited warranty

This axle-back system provides an easy installation process using existing factory mounting points, making it an ideal upgrade for performance-minded drivers who want improved sound and power without extensive modifications. The premium polished stainless steel tips add a distinctive finishing touch to your vehicle's rear end.

Products specifications

Fits

2018-2023 Ford Mustang

Brand

Flowmaster

Prop 65

Yes

California Proposition 65 Chemical Name

Nickel (Metallic)

California Proposition 65 Chemical Name

Chromium (hexavalent compounds)

Catalytic Converter Included

No

Catalytic Converter Quantity

0

Category

Exhaust

Clamping Type

Flat Band

Clamps Included

Yes

Emission Code

5

Exhaust Series

American Thunder

Exhaust Tip Color

Silver

Exhaust Tip Connection

Welded

Exhaust Tip Cut

Angled

Exhaust Tip Edge

Angle Cut

Exhaust Tip Finish

Polished

Exhaust Tip Intercooled

No

Exhaust Tip Length

5.25

Exhaust Tip Material

304 Stainless Steel

Exhaust Tip Quantity

4

Exhaust Tip Resonated

No

Exhaust Tip Shape

Round

Exhaust Tip Wall

Double Wall

Exit Style

Dual Out Rear

Finish

Natural

Gasket Or Seal Included

No

Grade Type

Performance

Hangers Included

Yes

Heat Shield Included

No

Inlet Type

Clamp-On

Mount Type

Uses Factory Hangers

Mounting Bracket Included

No

Muffler (Left) Body Width

12.00

Muffler (Left) Type

Reflection

Muffler (Right) Type

Reflection

Muffler Body Length

11.00

Muffler Body Material

409 Stainless Steel

Muffler Body Shape

Oval

Muffler Color

Black

Muffler Finish

Black High-Temperature Paint Finish

Muffler Flanged Inlet

No

Muffler Flanged Outlet

No

Muffler Inlet Connection

Slip-Fit

Muffler Inlet Location

Side

Muffler Outlet Location

Dual

Muffler Outlet Quantity

2

muffler part number

Kit Only

Muffler Quantity

2

Muffler Series

60 Series

Muffler Type

Reflection

Pipe Color

Silver

Pipe Material

409 Stainless Steel

Product Type

Exhaust System

Sound Level

Aggressive / Moderate

Spring Bolt Kit Included

No

Sub Category

Exhaust and Tail Pipes

Tail Pipe Quantity

Dual

Tail Pipe Quantity

2

Tail Pipe Tapered Outlet

No

Tip Logo

Embossed

Type

Axle-Back

Valve Actuator Included

No, Reuse OEM

Valve Included

Yes

Valve Type

OEM-Style Valves

Warning

California Proposition 65

fast cheap and easy! plan to use again.

Very fast and easy site.

It was easy to find what I wanted and the information on the cam I ordered.

Great price. Easy ordering process with Amazon integration.

Good easy and quick. Hopefully the correct part arrives in the mail.

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