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Flowmaster 818139 Outlaw Cat-Back Exhaust System

(2022-2025 Toyota Tundra)

Part of: Flowmaster Outlaw Cat-Back Exhaust System

Other options in this family: Flowmaster 818191 Flowmaster 817854 Flowmaster 817740 Flowmaster 817756 Flowmaster 818189

Manufacturer

Picture for manufacturer Flowmaster

Part Number

818139
6 reviews
Sale Price

$1,599.95

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Product Details

The Flowmaster Outlaw Cat-Back Exhaust System delivers an aggressive exhaust note with minimal interior resonance, giving your truck a powerful sound without the drone. This versatile system offers two installation configurations in one kit—install with dual outlets at the rear or dual outlets on the side to match your preferred style.

Key Features:

  • Custom-tuned Outlaw style muffler provides improved tone, increased sound level, and enhanced performance
  • Delivers performance gains of 10 horsepower and 14 lb-ft of torque at the rear wheels over stock exhaust
  • Two kits in one design allows for dual rear exit or dual side exit configuration
  • 3.5-inch black ceramic coated tips add an aggressive, stylish appearance
  • Better flowing design reduces backpressure and improves exhaust flow
  • Engineered for a deep, aggressive sound without excessive cabin resonance

This cat-back system is designed for truck owners who want to unlock additional power and achieve a more aggressive exhaust tone. The mandrel-bent tubing and high-flow muffler design work together to reduce restriction and maximize performance gains while maintaining excellent sound quality both inside and outside the vehicle.

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

Outlaw

Exhaust Tip Color

Black

Exhaust Tip Connection

Clamp-On

Exhaust Tip Cut

Angled

Exhaust Tip Edge

Angle Cut

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

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

Outlaw

Muffler Type

Reflection

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

Tip Logo

Embossed

Tip Style

Double wall

Type

Cat-Back

Valve Included

No

Valve Type

Not Applicable

Warning

California Proposition 65

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