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Flowmaster 818169 American Thunder Cat-Back Exhaust System

(2021-2025 Ford F-150)

Manufacturer

Part Number

818169
Sale Price

$1,049.95

4 left at this price

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Usually delivered within 2 days

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Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

The Flowmaster 818169 American Thunder Cat-Back Exhaust System delivers serious performance gains and an aggressive exhaust note for your truck. Engineered specifically for PowerBoost and standard gas trucks equipped with the factory dual exhaust option, this complete system is designed to maximize both power and sound.

Performance Upgrades:

  • Gains up to 18 horsepower and 14 lb-ft of torque over stock exhaust at the wheels
  • Super 40 Series muffler produces a deep, aggressive to moderate performance tone
  • 3.0-inch mandrel-bent 16-gauge 409 stainless steel tubing maximizes exhaust flow and durability
  • Improved exhaust flow reduces backpressure for better engine efficiency

Quality Construction and Fitment:

  • Large 4.50-inch black ceramic coated tips fill the bumper cutout better than factory tips
  • Complete hardware kit included with factory-styled hangers in stock locations
  • Precision-engineered for straightforward bolt-on installation
  • Compatible with PowerBoost hybrid and standard gas engines with factory dual exhaust

Backed by Flowmaster's Lifetime Limited Warranty, this American Thunder system combines proven performance engineering with durable stainless steel construction for long-lasting results. The mandrel-bent tubing ensures smooth exhaust flow without restrictions, while the Super 40 muffler delivers that signature Flowmaster sound without excessive drone.

Products specifications

Fits

2021-2025 Ford F-150

Brand

Flowmaster

Prop 65

Yes

California Proposition 65 Chemical Name

Chromium (hexavalent compounds)

California Proposition 65 Chemical Name

Nickel (Metallic)

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

Exhaust Tip Finish

Black Ceramic Coating

Exhaust Tip Intercooled

No

Exhaust Tip Material

304 Stainless Steel

Exhaust Tip Quantity

2

Exhaust Tip Resonated

No

Exhaust Tip Shape

Round

Exhaust Tip Wall

Single Wall

Exit Style

Dual Out Rear

Finish

Natural

Gasket Or Seal Included

No

Grade Type

Performance

Hangers Included

Yes

Inlet Type

Flanged

Mount Type

Uses Factory Hangers

Mounting Bracket Included

Yes

Muffler Body Length

10.25

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

Center

Muffler Outlet Connection

Slip-Fit

Muffler Outlet Location

Dual

Muffler Outlet Quantity

2

Muffler Overall Length

16.00

muffler part number

Kit Only

Muffler Quantity

1

Muffler Series

Super 40 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

Tip Style

Single wall

Type

Cat-Back

Valve Included

No

Valve Type

Not Applicable

Warning

California Proposition 65

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I think the shopping experience was great. Now we will see how the shipping experience is! Thank you. I wish we could’ve had a coupon or a discount with this purchase. Maybe you could let us know if we can get one for this purchase?

Everything went well. I'm not sure why a blower fan would be made with any metal that could corrode and yet that's what happened to the old one that is NOT that old.

Fast and easy

In stock and great pricing on product out of stock elsewhere. New customer - will definitely shop again.

Got exactly what I ordered, at a great price. Arrived as schedule.I'm a very satisfied customer

Muy bueno

Great transaction. As advertised. Quick s/h

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