SKU: 37809639866

2009-2021 Toyota Tundra Cat-Back Exhaust Flowmaster Stainless Steel

Sale price$584.98 Regular price$649.98
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Ships within 48 hours · Estimated delivery Aug 6 - Aug 11

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Description

2009-2021 Toyota Tundra Cat-Back Exhaust Flowmaster Stainless SteelOverview: 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.

Overview:

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.

Features:

  • Stainless Steel Construction
  • Dyno Tuned For Maximum Performance
  • Lifetime Limited Warranty
  • Delta Flow Technology
  • Specs:

  • Brand: Flowmaster
  • CARB (California) Compliant: Yes
  • Catalytic Converter Included: No
  • Catalytic Converter Quantity: 0
  • 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 Material: 304 Stainless Steel
  • Exhaust Tip Quantity: 2
  • Exhaust Tip Shape: Round
  • Exhaust Tip Wall: Double Wall
  • Exit Style: Dual Out Side
  • Finish: Natural
  • Gasket Or Seal Included: No
  • Grade Type: Performance
  • Hangers Included: Yes
  • Heat Shield Included: No
  • Inlet Diameter: 2.5
  • Inlet Type: Flanged
  • Main Piping Diameter: 2.5
  • Mounting Bracket Included: Yes
  • Muffler Body Height: 5
  • Muffler Body Length: 13.25
  • Muffler Body Material: 409 Stainless Steel
  • Muffler Body Shape: Oval
  • Muffler Body Width: 12
  • Muffler Finish: Black High-Temperature Paint Finish
  • Muffler Flanged Inlet: No
  • Muffler Flanged Outlet: No
  • Muffler Included: Yes
  • Muffler Inlet Connection: Slip-Fit
  • Muffler Inlet Inside Diameter: 2.5
  • Muffler Inlet Outside Diameter: 2.63
  • Muffler Outlet Connection: Slip-Fit
  • Muffler Outlet Quantity: 2
  • Muffler Part Number: Kit Only
  • Muffler Quantity: 1
  • Muffler Series: Super 40 Series
  • Muffler Type: Chambered
  • Pipe Color: Silver
  • Pipe Material: 409 Stainless Steel
  • Sound Level: Aggressive
  • Spring Bolt Kit Included: No
  • Tail Pipe Outlet Outside Diameter: 2.5
  • Tail Pipe Quantity: 2
  • Tail Pipe Tapered Outlet: No
  • Type: Cat-Back
  • Valve Included: No
  • Valve Type: Not Applicable
  • Part Number: 817664
  • Applications:

    • 2009-2021 Toyota Tundra 345 CID
    • 2009-2009 Toyota Tundra 285 CID

    Emissions:

    • 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.
    Shipping Notes
    • Free Standard Shipping on $100+ Orders to the USA.
    • Except Preorder products are shipped in 48 hours.
    • Delivery to the USA:
    1. Standard Shipping : 3-10 business days
    • If time is of the essence, please consider selecting expedited delivery for faster service.
    Exchange/Return Notes
    • We offer a 30-day return/exchange service after receiving.
    • Final sale items are not eligible for returns or exchanges.
    • To process your return/exchange, please contact us at [email protected]
    • Please click here for more details>>> Return & Exchange Policy
    SKU: 37809639866

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    4.8 ★★★★★
    Based on 8 reviews
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    C
    Verified Purchase
    Christina
    Port Orchard, US
    ★★★★★ 5
    Worth it for peace of mind to have in car
    Works as described. Have used twice now. Takes a few minutes but will put air in tire. The cord is long enough to reach every tire. Certainly loud when using car must be on to use
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on February 19, 2026
    A
    Verified Purchase
    Amazon Customer
    Natrona Heights, US
    ★★★★★ 5
    Great true inflator
    Great tire inflator also own a jumper pack in this brand, easy to use and great function to set the disired psi and auto shut off.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on January 18, 2026
    M
    Verified Purchase
    Michael D. Campion
    Lowell, US
    ★★★★★ 5
    Delivers great PSI for a small package
    Unit works great ! I love the fact you can preset the psi. cut off ( I had to pump up some air shocks to 135 the unit did it with no problem ! )
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on May 6, 2026
    L
    Verified Purchase
    Luis Fernando Cortes
    Los Angeles, US
    ★★★★★ 4
    Good inflator
    Not the best one but works well!
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on March 8, 2026
    K
    Verified Purchase
    KSiy
    Battle Creek, US
    ★★★★★ 5
    Excellent Value for Price
    I highly recommend one of these in your vehicle for emergencies. Don't fall for those handheld cordless ones you see on social media. Those will only inflate 1-2 tires before depleting. You have unlimited power for the plugins and it will inflate at least 4x faster. The AstroAI is compact, lightweight and powerful for its price. Everything folds into its rectangular form factor for easy storage. The UI is simple and to the point. You can easily set the target pressure and it will auto stop. It's also a nice looking design with black and yellow which are common colors for power tools and emergency equipment. If I were being picky, the 2 minor cons that you'll find in other brands are: no option to plug into wall outlet & doesn't come with a case or bag.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on November 22, 2025

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