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2009-20 Toyota Tundra 4.6L, 5.7L - Outlaw Extreme Cat-back Exhaust System 817708YouTube Button

Flowmaster Outlaw Cat-back Exhaust System

2009-2020 Toyota Tundra 4.6L, 4.7L and 5.7L engines.

PART# 817708

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$389.95   Your Price
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Aggressive sound


Introducing the Flowmaster® Outlaw Extreme™ cat-back exhaust system for 2009-2020 Toyota Tundra trucks with either the 4.6L, 4.7L or 5.7L engine is perfect for the person looking for maximum sound levels both inside and outside of the truck, with all of the performance benefits that you would expect from Flowmaster. This bolt-on emissions-legal system features all stainless steel construction, a specially designed dual inlet Outlaw® muffler flowing into short 3.00-inch turndown tailpipe for maximum performance and a deep aggressive sound. If you want to get noticed, this is the system for you. Includes all necessary parts and hardware for a fast and easy at home installation. Notes: Fits 2/4 wheel drives with 145-inch Wheelbase models only. Does Not fit Standard cab/short bed or Double cab/long bed models and only fits 2009 models built after 08/2008.


  • Specially Designed Outlaw Series Performance Muffler
  • Deep Aggressive Interior and Exterior Tone
  • Mandrel-bent Stainless Steel Construction
  • Race Proven Outlaw Muffler Technology
  • Extreme Sound for Extreme Lifestyles
  • Uses the Factory Hanger Locations
  • Lifetime Limited Warranty
  • Quick & Easy Installation


Catalytic Converter IncludedNo
Emission Code5
Exhaust SeriesOutlaw Extreme
Exit PositionSingle Out - Dump
Heat ShieldNo
Inlet Diameter (in)2.25
Material409 Stainless Steel
Mount TypeUses Factory Hangers
Muffler Part NumberKit Only
Muffler Quantity1
Muffler SeriesOutlaw
Muffler TypeWelded Baffle
Outlet Diameter (in)3
Product TypeExhaust System
Single DualSingle
Sound LevelAggressive
System TypeCat-back
Tip CutSquare
Tip Diameter (in)3
Tip Edge StyleCut
Tip FinishNatural
Tip Length (in)11
Tip LogoNone
Tip Material409 Stainless Steel
Tip Quantity1
Tip ShapeRound
Tubing Diameter (in)3
California Proposition 65 Chemical NameChromium (hexavalent compounds)
Nickel (Metallic)
California Proposition 65 RequiredYes
Part Number817708



This part is legal for sale or use on Emissions Controlled Vehicles, Uncontrolled (Non-Emissions Controlled) Vehicles, and Racing Use Only Vehicles because it does not affect vehicle emissions and is not covered by emissions regulations.

Tech Resources

Fits 2009-2020 Toyota Tundra with 4.6L, 4.7L and 5.7L engines. 145-inch Wheelbase models only. Only fits 2009 models built AFTER 08/2008


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