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Flowmaster 818166 American Thunder Cat-Back Exhaust System

(2021-2025 Ford F-150)

Part of: Flowmaster American Thunder Cat-Back Exhaust System

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

Manufacturer

Picture for manufacturer Flowmaster

Part Number

818166
7 reviews
Sale Price

$949.95

2 left at this price

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Usually delivered within 2 days

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Product Details

The Flowmaster American Thunder Cat-Back Exhaust System delivers a deep, moderate to mild performance tone while improving exhaust flow and horsepower. This complete bolt-on system is engineered for enthusiasts seeking enhanced sound and performance without being overly aggressive.

Key Features:

  • Specially tuned resonator produces a deep, refined exhaust note that's aggressive under acceleration yet comfortable during highway cruising
  • 3.00-inch and 3.5-inch mandrel-bent 16-gauge 409 stainless steel tubing maximizes exhaust flow and ensures long-lasting durability
  • 5.00-inch black ceramic coated stainless steel tip adds a custom appearance and resists heat discoloration
  • Complete hardware kit included with factory-styled hangers that utilize stock mounting locations for straightforward installation
  • Backed by Flowmaster's Lifetime Limited Warranty for peace of mind

This cat-back system replaces everything from behind the catalytic converter to the rear bumper, providing a complete exhaust upgrade that enhances both sound and performance. The mandrel-bent tubing maintains consistent diameter throughout each bend, eliminating restrictions and improving exhaust scavenging for better power delivery across the RPM range.

Products specifications

Fits

2021-2025 Ford F-150

Brand

Flowmaster

Prop 65

Yes

California Proposition 65 Chemical Name

Nickel (Metallic)

California Proposition 65 Chemical Name

Chromium (hexavalent compounds)

Catalytic Converter Quantity

0

Category

Exhaust

Clamping Type

Flat Band

Clamps Included

Yes

Emission Code

5

Exhaust Series

American Thunder

Exhaust Tip Color

Black

Exhaust Tip Connection

Clamp-On

Exhaust Tip Cut

Angled

Exhaust Tip Edge

Rolled Edge Angle Cut

Exhaust Tip Finish

Black Ceramic Coating

Exhaust Tip Intercooled

No

Exhaust Tip Material

304 Stainless Steel

Exhaust Tip Quantity

1

Exhaust Tip Resonated

No

Exhaust Tip Shape

Round

Exhaust Tip Wall

Single Wall

Exit Style

Single Out Rear

Finish

Natural

Gasket Or Seal Included

No

Grade Type

Performance

Hangers Included

Yes

Heat Shield Included

No

Inlet Type

Clamp-On

Mounting Bracket Included

No

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 Quantity

1

Muffler Type

Chambered

Pipe Color

Silver

Pipe Material

409 Stainless Steel

Sound Level

Moderate/Mild

Spring Bolt Kit Included

No

Sub Category

Exhaust and Tail Pipes

Tail Pipe Quantity

1

Tail Pipe Tapered Outlet

No

Type

Cat-Back

Valve Included

No

Valve Type

Not Applicable

Warning

California Proposition 65

Good

The order got here later then it should have because I paid for faster shipping. Other then that everything looks good.

Easy to buy and order, Cant wait for next step completion.

Good

Great. Thanks for using Fedex. They were prompt.

Had what I wanted for a good price.

Exactly what I ordered in a timely manner. I'd do business again. I have already recommended to a friend.

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