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    • Flowmaster 2009-2021 Toyota Tundra 4.6L, 4.7L and 5.7L engines. - Aggressive sound 817664
    • Flowmaster 2009-2021 Toyota Tundra 4.6L, 4.7L and 5.7L engines. - Aggressive sound 817664
    • American Thunder Cat-Back Exhaust System 2009-2021 Toyota Tundra 4.6L, 4.7L And 5.7L Engines Aggressive Sound Flowmaster
    • American Thunder Cat-Back Exhaust System 2009-2021 Toyota Tundra 4.6L, 4.7L And 5.7L Engines Aggressive Sound Flowmaster
    • American Thunder Cat-Back Exhaust System 2009-2021 Toyota Tundra 4.6L, 4.7L And 5.7L Engines Aggressive Sound Flowmaster
    • American Thunder Cat-Back Exhaust System 2009-2021 Toyota Tundra 4.6L, 4.7L And 5.7L Engines Aggressive Sound Flowmaster
    • American Thunder Cat-Back Exhaust System 2009-2021 Toyota Tundra 4.6L, 4.7L And 5.7L Engines Aggressive Sound Flowmaster
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    Flowmaster 2009-2021 Toyota Tundra 4.6L, 4.7L and 5.7L engines. - Aggressive sound 817664

    Vendor: Flowmaster
    Part Number: 817664
    Save $163
    Sale Price $1,299.95 Regular Price $1,462.95

    Currently out of stock.

    Not sure it fits your vehicle?
    Email sales@berryperformancesales.com with your year, make, model and engine, and we'll help you check fitment before you order.
    Fast Fulfillment: In-stock orders typically ship within 1 to 2 business days.
    Free Shipping on Orders Over $99 | Excludes freight shipments
    International Shipping Available: email sales@berryperformancesales.com for a quote.
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    The American Thunder® cat-back exhaust system for 2009-2021 Toyota Tundra trucks with the 4.6L, 4.7L or 5.7L engine is perfect for the person looking for an deep aggressive exterior tone with a mellow growl inside the truck and all of the performance benefits you expect from Flowmaster®. This bolt-on emissions-legal system features all stainless steel construction, a specially designed dual inlet Super 40® Series muffler flowing into dual 2.50-inch mandrel-bent tailpipes for maximum performance with a deep tone. The kit comes with two sets of final pipes for either a dual out the back look or dual out behind the rear tires, which is beneficial for towing. The tailpipes are finished off with a pair of 3.50-inch double wall polished stainless steel tips. The system includes all necessary parts and hardware for easy at home installation. Note: Fits 2/4 wheel drive. Does not fit regular cab/short bed or double cab/long bed models. Only fits 2009 models built after 08/2008.


    Flowmaster 2009-2021 Toyota Tundra 4.6L, 4.7L and 5.7L engines. - Aggressive sound 817664


    Specifications:

    Brand Flowmaster
    California Proposition 65 Yes
    California Proposition 65 Chemical Name Chromium (hexavalent compounds)
    California Proposition 65 Chemical Name Nickel (Metallic)
    CARB (California) Compliant Yes
    Catalytic Converter Included No
    2874 0
    Category Exhaust
    3728 Flat Band
    1882 Yes
    Emission Code 5
    Exhaust Series American Thunder
    11205 Silver
    9874 Clamp-On
    9876 Angled
    1162 3.50
    9877 Angle Cut
    1163 Polished
    9881 No
    10104 13.00
    1164 304 Stainless Steel
    1161 2
    9878 No
    10980 Round
    9875 Double Wall
    9870 Dual Out Side
    9870 Dual Out Rear
    200 Natural
    353 No
    3390 Performance
    4364 Yes
    Heat Shield Included No
    Inlet Diameter 2.50
    596 Flanged
    9871 2.50
    92 Yes
    9884 5.00
    1892 13.25
    4372 409 Stainless Steel
    4373 Oval
    9882 Black High-Temperature Paint Finish
    4367 No
    4368 No
    Muffler Included Yes
    9962 Slip-Fit
    4365 2.50
    4366 2.63
    9963 Slip-Fit
    4375 2
    Muffler Part Number Kit Only
    4374 1
    Muffler Series Super 40 Series
    1174 Chambered
    part type Exhaust System
    3530 409 Stainless Steel
    Product Type Exhaust System
    Sound Level Aggressive
    4377 No
    Sub Category Exhaust and Tail Pipes
    4369 2.50
    4376 2
    Tail Pipe Quantity Dual
    4370 No
    26 Cat-Back
    6014 No
    2126 Not Applicable
    Warning California Proposition 65
    Pipe Color Silver
    Drive 4WD
    Drive 2WD
    9885 12.00
    Brand Flowmaster
    California Proposition 65 Yes
    California Proposition 65 Chemical Name Chromium (hexavalent compounds)
    California Proposition 65 Chemical Name Nickel (Metallic)
    CARB (California) Compliant Yes
    Catalytic Converter Included No
    2874 0
    Category Exhaust
    3728 Flat Band
    1882 Yes
    Emission Code 5
    Exhaust Series American Thunder
    11205 Silver
    9874 Clamp-On
    9876 Angled
    1162 3.50
    9877 Angle Cut
    1163 Polished
    9881 No
    10104 13.00
    1164 304 Stainless Steel
    1161 2
    9878 No
    10980 Round
    9875 Double Wall
    9870 Dual Out Side
    9870 Dual Out Rear
    200 Natural
    353 No
    3390 Performance
    4364 Yes
    Heat Shield Included No
    Inlet Diameter 2.50
    596 Flanged
    9871 2.50
    92 Yes
    9884 5.00
    1892 13.25
    4372 409 Stainless Steel
    4373 Oval
    9882 Black High-Temperature Paint Finish
    4367 No
    4368 No
    Muffler Included Yes
    9962 Slip-Fit
    4365 2.50
    4366 2.63
    9963 Slip-Fit
    4375 2
    Muffler Part Number Kit Only
    4374 1
    Muffler Series Super 40 Series
    1174 Chambered
    part type Exhaust System
    3530 409 Stainless Steel
    Product Type Exhaust System
    Sound Level Aggressive
    4377 No
    Sub Category Exhaust and Tail Pipes
    4369 2.50
    4376 2
    Tail Pipe Quantity Dual
    4370 No
    26 Cat-Back
    6014 No
    2126 Not Applicable
    Warning California Proposition 65
    Pipe Color Silver
    Drive 4WD
    Drive 2WD
    9885 12.00
    Description_ABR SYS 09-21 TU
    Description_SHO SYS 09-21 TUNDRA V8
    Description_INV 09-21 TUNDRA V8 AMT DOR/S 409S
    Description_ASC Fits 2009-2021 Toyota Tundra 4.6L, 4.7L or 5.7L engine with 145-inch Wheelbase only. Note: Does not fit regular cab/short bed or double cab/long bed models. Only fits 2009 models built after 08/2008.
    Description_DES Flowmaster American Thunder Cat-back Exhaust System
    Description_EXT 2009-2021 Toyota Tundra 4.6L, 4.7L and 5.7L engines. - Aggressive sound
    Description_MKT The American Thunder® cat-back exhaust system for 2009-2021 Toyota Tundra trucks with the 4.6L, 4.7L or 5.7L engine is perfect for the person looking for an deep aggressive exterior tone with a mellow growl inside the truck and all of the performance benefits you expect from Flowmaster®. This bolt-on emissions-legal system features all stainless steel construction, a specially designed dual inlet Super 40® Series muffler flowing into dual 2.50-inch mandrel-bent tailpipes for maximum performance with a deep tone. The kit comes with two sets of final pipes for either a dual out the back look or dual out behind the rear tires, which is beneficial for towing. The tailpipes are finished off with a pair of 3.50-inch double wall polished stainless steel tips. The system includes all necessary parts and hardware for easy at home installation. Note: Fits 2/4 wheel drive. Does not fit regular cab/short bed or double cab/long bed models. Only fits 2009 models built after 08/2008.
    Description_FAB Large 3.50-inch Polished 304 Stainless Steel Tips
    Description_FAB Side Exit Tailpipes Ideal for Towing Applications
    Description_FAB Mandrel-bent Stainless Steel Construction
    Description_FAB Super 40 Series Performance Muffler
    Description_FAB Deep Aggressive Performance Tone
    Description_FAB Uses the Factory Hanger Locations
    Description_FAB Multiple Exit Styles Provided in Kit
    Description_FAB Includes all Necessary Hardware
    Description_FAB Clears the Factory Spare Tire
    Description_FAB Lifetime Limited Warranty
    Description_FAB Easy Installation
    Description_ABR SYS 09-21 TU
    Description_SHO SYS 09-21 TUNDRA V8
    Description_INV 09-21 TUNDRA V8 AMT DOR/S 409S
    Description_ASC Fits 2009-2021 Toyota Tundra 4.6L, 4.7L or 5.7L engine with 145-inch Wheelbase only. Note: Does not fit regular cab/short bed or double cab/long bed models. Only fits 2009 models built after 08/2008.
    Description_DES Flowmaster American Thunder Cat-back Exhaust System
    Description_EXT 2009-2021 Toyota Tundra 4.6L, 4.7L and 5.7L engines. - Aggressive sound
    Description_MKT The American Thunder® cat-back exhaust system for 2009-2021 Toyota Tundra trucks with the 4.6L, 4.7L or 5.7L engine is perfect for the person looking for an deep aggressive exterior tone with a mellow growl inside the truck and all of the performance benefits you expect from Flowmaster®. This bolt-on emissions-legal system features all stainless steel construction, a specially designed dual inlet Super 40® Series muffler flowing into dual 2.50-inch mandrel-bent tailpipes for maximum performance with a deep tone. The kit comes with two sets of final pipes for either a dual out the back look or dual out behind the rear tires, which is beneficial for towing. The tailpipes are finished off with a pair of 3.50-inch double wall polished stainless steel tips. The system includes all necessary parts and hardware for easy at home installation. Note: Fits 2/4 wheel drive. Does not fit regular cab/short bed or double cab/long bed models. Only fits 2009 models built after 08/2008.
    Description_FAB Large 3.50-inch Polished 304 Stainless Steel Tips
    Description_FAB Side Exit Tailpipes Ideal for Towing Applications
    Description_FAB Mandrel-bent Stainless Steel Construction
    Description_FAB Super 40 Series Performance Muffler
    Description_FAB Deep Aggressive Performance Tone
    Description_FAB Uses the Factory Hanger Locations
    Description_FAB Multiple Exit Styles Provided in Kit
    Description_FAB Includes all Necessary Hardware
    Description_FAB Clears the Factory Spare Tire
    Description_FAB Lifetime Limited Warranty
    Description_FAB Easy Installation


    This Part Fits:

    Year Make Model Submodel Notes
    2014 Toyota Tundra 1794 Edition
    2015 Toyota Tundra 1794 Edition
    2016 Toyota Tundra 1794 Edition
    2017 Toyota Tundra 1794 Edition
    2018 Toyota Tundra 1794 Edition
    2019 Toyota Tundra 1794 Edition
    2020 Toyota Tundra 1794 Edition
    2021 Toyota Tundra 1794 Edition
    2009 Toyota Tundra Base
    2009 Toyota Tundra Base
    2010 Toyota Tundra Base
    2010 Toyota Tundra Base
    2011 Toyota Tundra Base
    2011 Toyota Tundra Base
    2012 Toyota Tundra Base
    2012 Toyota Tundra Base
    2013 Toyota Tundra Base
    2009 Toyota Tundra Limited
    2009 Toyota Tundra Limited
    2010 Toyota Tundra Limited
    2010 Toyota Tundra Limited
    2011 Toyota Tundra Limited
    2012 Toyota Tundra Limited
    2013 Toyota Tundra Limited
    2014 Toyota Tundra Limited
    2015 Toyota Tundra Limited
    2016 Toyota Tundra Limited
    2017 Toyota Tundra Limited
    2018 Toyota Tundra Limited
    2019 Toyota Tundra Limited
    2020 Toyota Tundra Limited
    2021 Toyota Tundra Limited
    2021 Toyota Tundra Nightshade
    2010 Toyota Tundra Platinum
    2014 Toyota Tundra SR
    2014 Toyota Tundra SR
    2015 Toyota Tundra SR
    2015 Toyota Tundra SR
    2016 Toyota Tundra SR
    2016 Toyota Tundra SR
    2017 Toyota Tundra SR
    2017 Toyota Tundra SR
    2018 Toyota Tundra SR
    2018 Toyota Tundra SR
    2019 Toyota Tundra SR
    2019 Toyota Tundra SR
    2020 Toyota Tundra SR
    2021 Toyota Tundra SR
    2009 Toyota Tundra SR5
    2009 Toyota Tundra SR5
    2010 Toyota Tundra SR5
    2010 Toyota Tundra SR5
    2011 Toyota Tundra SR5
    2011 Toyota Tundra SR5
    2012 Toyota Tundra SR5
    2013 Toyota Tundra SR5
    2013 Toyota Tundra SR5
    2014 Toyota Tundra SR5
    2014 Toyota Tundra SR5
    2015 Toyota Tundra SR5
    2015 Toyota Tundra SR5
    2016 Toyota Tundra SR5
    2016 Toyota Tundra SR5
    2017 Toyota Tundra SR5
    2017 Toyota Tundra SR5
    2018 Toyota Tundra SR5
    2018 Toyota Tundra SR5
    2019 Toyota Tundra SR5
    2019 Toyota Tundra SR5
    2020 Toyota Tundra SR5
    2021 Toyota Tundra SR5
    2021 Toyota Tundra Trail
    2020 Toyota Tundra TRD Off-Road
    2021 Toyota Tundra TRD Off-Road
    2021 Toyota Tundra TRD Off-Road Premium
    2020 Toyota Tundra TRD Sport
    2021 Toyota Tundra TRD Sport Premium
    Shipping Policy
    • Free shipping on orders over $99 (excludes freight shipments).
    • In-stock orders typically ship within 1 to 2 business days. Weekend and holiday orders are processed the next business day.
    • Orders ship from Defiance, Ohio and a nationwide network of warehouses and manufacturers.
    • Items showing an ETA are not in stock yet. ETAs come from the manufacturer and can change.
    • No P.O. Boxes. International orders need a shipping quote, so email us first.

    Read the full Shipping Policy

    Return Policy
    • 30-day return window from the ship date. Returns must be approved first; email sales@berryperformancesales.com with your order number.
    • Items must be unused, complete and in the original packaging.
    • A 20% restocking fee applies, and return shipping is paid by the buyer.
    • Not returnable: installed or modified parts, opened or used programmers and tuners, custom orders, Open Box, and Clearance or Final Sale items.
    • Damaged, defective or incorrect items must be reported within 48 hours of delivery with photos.

    Read the full Return Policy

    Disclaimer

    All products are sold for off-road use only unless otherwise specified. Buyer assumes all responsibility for installation and operation. Seller is not liable for any incidental, indirect, or consequential damages — including engine failure, labor costs, or vehicle downtime — resulting from the use of any product sold.

    By making a purchase from Berry Performance Sales, you acknowledge and agree to abide by the terms and conditions of these Policies.

    For any questions or concerns, please contact us — we’re always happy to help.

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