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Flowmaster 2009-2021 Toyota Tundra Outlaw Cat-Back Exhaust System 817708

Flowmaster 2009-2021 Toyota Tundra Outlaw Cat-Back Exhaust System 817708
Flowmaster 2009-2021 Toyota Tundra Outlaw Cat-Back Exhaust System 817708Flowmaster 2009-2021 Toyota Tundra Outlaw Cat-Back Exhaust System 817708Flowmaster 2009-2021 Toyota Tundra Outlaw Cat-Back Exhaust System 817708Flowmaster 2009-2021 Toyota Tundra Outlaw Cat-Back Exhaust System 817708
$827.99 ea
NEWARRIVING SOONEstimated Ship Date 07/14/2025 (If Ordered Today)12 Available from HOLLEY PERFORMANCE PRODUCTS as of 06/23/2025
Model: 4005422
Select a Vehicle or refer to the Vehicle Fitment Tab below to verify that this part fits your vehicle.
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Introducing the Flowmaster® Outlaw Extreme™ cat-back exhaust system for 2009-2021 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.
Features:
  • 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
Fits 2009-2021 Toyota Tundra with 4.6L, 4.7L and 5.7L engines. 145-inch Wheelbase models only. Only fits 2009 models built AFTER 08/2008
Installation Notes:
Fits 2009-2021 Toyota Tundra with 4.6L, 4.7L and 5.7L engines. 145-inch Wheelbase models only. Only fits 2009 models built AFTER 08/2008
About Flowmaster

Manufacturer of performance exhaust systems, mufflers, performance air intakes, turbo boost modules, catalytic converters, race mufflers, headers and numerous exhaust accessories for late model cars, trucks, off-road, Jeeps, SUV’s, classic muscle cars, powersports vehicles and more. Flowmaster® gives you lots of exhaust choices with 12 designs of chambered mufflers, 3 styles of our exclusive “laminar-flow” mufflers and a new line of FlowFX “straight-through” performance mufflers, along with 5 sound categories of exhaust systems, giving you the customer, the power to custom tailor the sound of your vehicle whether you prefer mild, moderate or aggressive tones and sound levels. Since 1983, Flowmaster is the company you can trust, and has led the industry in offering only the best products you can buy for your vehicles.

Downloads:

Download Name File Size
fm_warranty_general.pdf88.58KB
817708_instructions.pdf1.08MB

Videos:

Vehicle Fitment:

The Vehicle Fitment Guide is to be used as a general reference. The data has been provided by our suppliers and manufacturers and may contain errors or incorrect data. Always refer to a professional to verify correct fitment for your vehicle.
Make Model Submodel Years Engine Fitment Notes
Toyota Tundra 1794 Edition 2014 5.7L / 345 / V8
Toyota Tundra 1794 Edition 2015 5.7L / 345 / V8
Toyota Tundra 1794 Edition 2016 5.7L / 345 / V8
Toyota Tundra 1794 Edition 2017 5.7L / 345 / V8
Toyota Tundra 1794 Edition 2018 5.7L / 345 / V8
Toyota Tundra 1794 Edition 2019 5.7L / 345 / V8
Toyota Tundra 1794 Edition 2020 5.7L / 345 / V8
Toyota Tundra 1794 Edition 2021 5.7L / 345 / V8 DOES NOT FIT REGULAR CAB/SHORT BED OR DOUBLE CAB/LONG BED MODELS.
Toyota Tundra 1794 2018 5.7L / 345 / V8
Toyota Tundra 1794 2019 5.7L / 345 / V8
Toyota Tundra 1794 2021 5.7L / 345 / V8 DOES NOT FIT REGULAR CAB/SHORT BED OR DOUBLE CAB/LONG BED MODELS.
Toyota Tundra Base 2009 5.7L / 345 / V8
4.7L / 285 / V8
Toyota Tundra Base 2010 5.7L / 345 / V8
4.6L / V8
Toyota Tundra Base 2011 5.7L / 345 / V8
4.6L / V8
Toyota Tundra Base 2012 5.7L / 345 / V8
4.6L / V8
Toyota Tundra Base 2013 5.7L / 345 / V8
4.6L / V8
Toyota Tundra Base 2020 5.7L / 345 / V8
Toyota Tundra Base 2021 5.7L / 345 / V8 DOES NOT FIT REGULAR CAB/SHORT BED OR DOUBLE CAB/LONG BED MODELS.
Toyota Tundra Limited 2009 5.7L / 345 / V8
4.7L / 285 / V8
Toyota Tundra Limited 2010 5.7L / 345 / V8
4.6L / V8
Toyota Tundra Limited 2011 5.7L / 345 / V8
Toyota Tundra Limited 2012 5.7L / 345 / V8
Toyota Tundra Limited 2013 5.7L / 345 / V8
Toyota Tundra Limited 2014 5.7L / 345 / V8
Toyota Tundra Limited 2015 5.7L / 345 / V8
Toyota Tundra Limited 2016 5.7L / 345 / V8
Toyota Tundra Limited 2017 5.7L / 345 / V8
Toyota Tundra Limited 2018 5.7L / 345 / V8
Toyota Tundra Limited 2019 5.7L / 345 / V8
Toyota Tundra Limited 2020 5.7L / 345 / V8
Toyota Tundra Limited 2021 5.7L / 345 / V8 DOES NOT FIT REGULAR CAB/SHORT BED OR DOUBLE CAB/LONG BED MODELS.
Toyota Tundra Ltd 2017 5.7L / 345 / V8
Toyota Tundra Nightshade 2021 5.7L / 345 / V8 DOES NOT FIT REGULAR CAB/SHORT BED OR DOUBLE CAB/LONG BED MODELS.
Toyota Tundra Platinum 2010 5.7L / 345 / V8
4.6L / V8
Toyota Tundra Platinum 2013 5.7L / 345 / V8
Toyota Tundra Platinum 2014 5.7L / 345 / V8
Toyota Tundra Platinum 2015 5.7L / 345 / V8
Toyota Tundra Platinum 2016 5.7L / 345 / V8
Toyota Tundra Platinum 2017 5.7L / 345 / V8
Toyota Tundra Platinum 2018 5.7L / 345 / V8
Toyota Tundra Platinum 2019 5.7L / 345 / V8
Toyota Tundra Platinum 2020 5.7L / 345 / V8
Toyota Tundra Platinum 2021 5.7L / 345 / V8 DOES NOT FIT REGULAR CAB/SHORT BED OR DOUBLE CAB/LONG BED MODELS.
Toyota Tundra SR5 2009 5.7L / 345 / V8
4.7L / 285 / V8
Toyota Tundra SR5 2010 5.7L / 345 / V8
4.6L / V8
Toyota Tundra SR5 2011 5.7L / 345 / V8
4.6L / V8
Toyota Tundra SR5 2012 5.7L / 345 / V8
Toyota Tundra SR5 2013 5.7L / 345 / V8
4.6L / V8
Toyota Tundra SR5 2014 5.7L / 345 / V8
4.6L / V8
Toyota Tundra SR5 2015 5.7L / 345 / V8
4.6L / V8
Toyota Tundra SR5 2016 5.7L / 345 / V8
4.6L / V8
Toyota Tundra SR5 2017 5.7L / 345 / V8
4.6L / V8
Toyota Tundra SR5 2018 5.7L / 345 / V8
4.6L / V8
Toyota Tundra SR5 2019 5.7L / 345 / V8
4.6L / V8
Toyota Tundra SR5 2020 5.7L / 345 / V8
Toyota Tundra SR5 2021 5.7L / 345 / V8 DOES NOT FIT REGULAR CAB/SHORT BED OR DOUBLE CAB/LONG BED MODELS.
Toyota Tundra SR 2014 5.7L / 345 / V8
4.6L / V8
Toyota Tundra SR 2015 5.7L / 345 / V8
4.6L / V8
Toyota Tundra SR 2016 5.7L / 345 / V8
4.6L / V8
Toyota Tundra SR 2017 5.7L / 345 / V8
4.6L / V8
Toyota Tundra SR 2018 5.7L / 345 / V8
4.6L / V8
Toyota Tundra SR 2019 5.7L / 345 / V8
4.6L / V8
Toyota Tundra SR 2020 5.7L / 345 / V8
Toyota Tundra SR 2021 5.7L / 345 / V8 DOES NOT FIT REGULAR CAB/SHORT BED OR DOUBLE CAB/LONG BED MODELS.
Toyota Tundra TRD Off-Road Premium 2021 5.7L / 345 / V8 DOES NOT FIT REGULAR CAB/SHORT BED OR DOUBLE CAB/LONG BED MODELS.
Toyota Tundra TRD Off-Road 2020 5.7L / 345 / V8
Toyota Tundra TRD Off-Road 2021 5.7L / 345 / V8 DOES NOT FIT REGULAR CAB/SHORT BED OR DOUBLE CAB/LONG BED MODELS.
Toyota Tundra TRD Pro 2015 5.7L / 345 / V8
Toyota Tundra TRD Pro 2016 5.7L / 345 / V8
Toyota Tundra TRD Pro 2017 5.7L / 345 / V8
Toyota Tundra TRD Pro 2019 5.7L / 345 / V8
Toyota Tundra TRD Pro 2020 5.7L / 345 / V8
Toyota Tundra TRD Pro 2021 5.7L / 345 / V8 DOES NOT FIT REGULAR CAB/SHORT BED OR DOUBLE CAB/LONG BED MODELS.
Toyota Tundra TRD Sport Premium 2021 5.7L / 345 / V8 DOES NOT FIT REGULAR CAB/SHORT BED OR DOUBLE CAB/LONG BED MODELS.
Toyota Tundra TRD Sport 2020 5.7L / 345 / V8
Toyota Tundra Trail 2021 5.7L / 345 / V8 DOES NOT FIT REGULAR CAB/SHORT BED OR DOUBLE CAB/LONG BED MODELS.
Toyota Tundra 2015 4.6L / V8
5.7L / 345 / V8
Toyota Tundra 2016 4.6L / V8
5.7L / 345 / V8

Specifications:

2WD/4WD RWD/4WD
California Proposition 65 Chemical Name Chromium (hexavalent compounds), Nickel (Metallic)
California Proposition 65 Required Yes
Catalytic Converter Included No
Color Black
Emission Code 5
Exhaust Series Outlaw Extreme
Exit Position Single Out - Dump
Heat Shield No
Inlet Diameter (in) 2.25
Material 409 Stainless Steel
Mount Type Uses Factory Hangers
Muffler Part Number Kit Only
Muffler Quantity 1
Muffler Series Outlaw
Muffler Type Welded Baffle
Outlet Diameter (in) 3
Part Type Exhaust System Kit
Product Type Exhaust System
Proposition 65 www.P65Warnings.ca.gov
Shape Round
Single Dual Single
Sound Level Aggressive
System Type Cat-back
Tip Cut Square
Tip Diameter (in) 3
Tip Edge Style Cut
Tip Finish Natural
Tip Length (in) 11
Tip Logo None
Tip Material 409 Stainless Steel
Tip Quantity 1
Tip Shape Round
Tubing Diameter (in) 3
Warranty Limited Lifetime (Lifetime)

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