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Flowmaster 818140 American Thunder Cat-Back Exhaust System

(2022-2025 Toyota Tundra)

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

818140
9 reviews
Sale Price

$1,299.95

2 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 818140 American Thunder Cat-Back Exhaust System delivers enhanced performance and an aggressive exhaust note for your vehicle. This complete exhaust system features premium materials and engineering designed to maximize flow while providing the signature Flowmaster sound.

Key Features:

  • 50 Series HD muffler produces a moderate, performance-oriented sound level both inside the cabin and outside
  • 2.50-inch mandrel-bent 16-gauge 409 stainless steel tubing maximizes exhaust flow and ensures long-lasting durability
  • Dual exit configuration with options for rear or side exit routing
  • 3.50-inch polished stainless steel tips provide an aggressive, custom appearance
  • Includes all necessary hardware and factory-styled hangers that mount in stock locations for straightforward bolt-on installation
  • Backed by Flowmaster's Lifetime Limited Warranty for peace of mind

This cat-back system replaces everything from the catalytic converter back, offering improved exhaust flow that can increase horsepower and torque while reducing backpressure. The mandrel-bent construction maintains consistent pipe diameter throughout the bends, ensuring smooth exhaust flow. The 50 Series HD muffler strikes an ideal balance between aggressive sound and daily drivability, making it perfect for enthusiasts who want improved performance without excessive noise.

Products specifications

Fits

2022-2025 Toyota Tundra

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

Silver

Exhaust Tip Connection

Clamp-On

Exhaust Tip Cut

Angled

Exhaust Tip Edge

Angle Cut

Exhaust Tip Finish

Polished

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

Double Wall

Exit Style

Dual Out Side

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 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

Dual

Muffler Outlet Connection

Slip-Fit

Muffler Outlet Location

Dual

Muffler Outlet Quantity

2

muffler part number

Kit Only

Muffler Quantity

1

Muffler Series

50 Series HD

Muffler Type

Reflection

Pipe Color

Silver

Pipe Material

409 Stainless Steel

Product Type

Exhaust System

Sound Level

Moderate

Spring Bolt Kit Included

No

Sub Category

Exhaust and Tail Pipes

Tail Pipe Quantity

2

Tail Pipe Quantity

Dual

Tail Pipe Tapered Outlet

No

Tip Logo

Embossed

Tip Style

Double wall

Type

Cat-Back

Valve Included

No

Valve Type

Not Applicable

Warning

California Proposition 65

This is exactly what I ordered and I have to tell you. I'm very impressed at how fast you got this to me. I will absolutely be working with your company again. A very happy customer!

Totally awesome buying experience

vvvv

Thanks for giving me the oportunity to work with you

Appreciate the quick delivery service

amazing came super fast

Fast delivery! Very satisfied.

Great service

Great service

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