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    • Flowmaster American Thunder Cat-Back Exhaust System Fits 2019-2026 Silverado/Sierra 1500 (New Body Style) 5.3L Engines Aggressive To Moderate Sound Flowmaster 817853
    • Flowmaster American Thunder Cat-Back Exhaust System Fits 2019-2026 Silverado/Sierra 1500 (New Body Style) 5.3L Engines Aggressive To Moderate Sound Flowmaster 817853
    • Flowmaster American Thunder Cat-Back Exhaust System Fits 2019-2026 Silverado/Sierra 1500 (New Body Style) 5.3L Engines Aggressive To Moderate Sound Flowmaster 817853
    • Flowmaster American Thunder Cat-Back Exhaust System Fits 2019-2026 Silverado/Sierra 1500 (New Body Style) 5.3L Engines Aggressive To Moderate Sound Flowmaster 817853
    • Flowmaster American Thunder Cat-Back Exhaust System Fits 2019-2026 Silverado/Sierra 1500 (New Body Style) 5.3L Engines Aggressive To Moderate Sound Flowmaster 817853
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    • American Thunder Cat-Back Exhaust System Fits 2019-2026 Silverado/Sierra 1500 (New Body Style) 5.3L Engines Aggressive To Moderate Sound Flowmaster
    • American Thunder Cat-Back Exhaust System Fits 2019-2026 Silverado/Sierra 1500 (New Body Style) 5.3L Engines Aggressive To Moderate Sound Flowmaster
    • American Thunder Cat-Back Exhaust System Fits 2019-2026 Silverado/Sierra 1500 (New Body Style) 5.3L Engines Aggressive To Moderate Sound Flowmaster
    • American Thunder Cat-Back Exhaust System Fits 2019-2026 Silverado/Sierra 1500 (New Body Style) 5.3L Engines Aggressive To Moderate Sound Flowmaster
    • American Thunder Cat-Back Exhaust System Fits 2019-2026 Silverado/Sierra 1500 (New Body Style) 5.3L Engines Aggressive To Moderate Sound Flowmaster
    • American Thunder Cat-Back Exhaust System Fits 2019-2026 Silverado/Sierra 1500 (New Body Style) 5.3L Engines Aggressive To Moderate Sound Flowmaster
    Sale!New!

    Flowmaster American Thunder Cat-Back Exhaust System Fits 2019-2026 Silverado/Sierra 1500 (New Body Style) 5.3L Engines Aggressive To Moderate Sound Flowmaster 817853

    Vendor: Flowmaster
    SKU: BDXN_817853
    Save $154
    Sale Price $1,229.95 Regular Price $1,383.95
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    This Flowmaster American Thunder Cat-back exhaust system is perfect for the person looking for deep, powerful sound outside the vehicle with a little growl inside the cab. This emissions-legal system is for 2WD & 4WD 2019-2026 GM 1500 trucks (new body style) with the 5.3L engine and factory single exhaust.

    System features include full stainless steel construction, a single in/dual outlet Super 40 Series muffler and mandrel-bent dual 2.50-inch stainless steel tailpipes for maximum performance and a deep sound. Maximum dyno gains of 21 hp and 23 lb.ft. at the rear wheels. This bolt-on system utilizes the factory hanger locations and includes your choice of tailpipe exits, either dual out the rear exiting under the bumper, or dual out the side behind the rear wheels to help prevent blowing exhaust on your boat or trailer when towing. The system is finished off with a pair of large 3.50-inch double wall polished 304 stainless steel tips. Designed for a perfect fit, the system includes installation instructions and all the necessary hardware for an easy at home installation. Note: Fits 2/4 wheel drive Crew cab and double cab models.

    • Large 3.50 inch Polished 304 Stainless Tips
    • Uses the Factory Hanger Locations
    • Deep, Powerful Performance Tone
    • Full Stainless Steel Construction
    • Clears Factory Spare Tire
    • Lifetime Limited Warranty
    • Mandrel-bent Tubing
    • Easy Installation
    • Max Dyno Gains of 21 hp and 23 lb.ft. of Torque


    Flowmaster American Thunder Cat-Back Exhaust System Fits 2019-2026 Silverado/Sierra 1500 (New Body Style) 5.3L Engines Aggressive To Moderate Sound Flowmaster 817853


    Specifications:

    Country of Origin USA
    Sold As Kit
    UPC 700042039012
    Availability Available
    Exhaust Type Cat Back
    Exit Style Dual Out Side Dual Out Rear
    Mount Style Clamp-On
    Shape Oval


    This Part Fits:

    Year Make Model Submodel Notes
    2019 GMC Sierra 1500 AT4
    2020 GMC Sierra 1500 AT4
    2021 GMC Sierra 1500 AT4
    2019 Chevrolet Silverado 1500 LT
    2020 Chevrolet Silverado 1500 LT
    2021 Chevrolet Silverado 1500 LT
    2022 Chevrolet Silverado 1500 LT
    2023 Chevrolet Silverado 1500 LT
    2024 Chevrolet Silverado 1500 LT
    2025 Chevrolet Silverado 1500 LT
    2026 Chevrolet Silverado 1500 LT
    2019 Chevrolet Silverado 1500 WT
    2020 Chevrolet Silverado 1500 WT
    2021 Chevrolet Silverado 1500 WT
    2022 Chevrolet Silverado 1500 WT
    2023 Chevrolet Silverado 1500 WT
    2024 Chevrolet Silverado 1500 WT
    2025 Chevrolet Silverado 1500 WT
    2026 Chevrolet Silverado 1500 WT
    2019 Chevrolet Silverado 1500 SSV
    2020 Chevrolet Silverado 1500 SSV
    2021 Chevrolet Silverado 1500 SSV
    2019 GMC Sierra 1500 SLT
    2020 GMC Sierra 1500 SLT
    2021 GMC Sierra 1500 SLT
    2022 GMC Sierra 1500 SLT
    2023 GMC Sierra 1500 SLT
    2024 GMC Sierra 1500 SLT
    2025 GMC Sierra 1500 SLT
    2026 GMC Sierra 1500 SLT
    2019 GMC Sierra 1500 SLE
    2020 GMC Sierra 1500 SLE
    2021 GMC Sierra 1500 SLE
    2022 GMC Sierra 1500 SLE
    2023 GMC Sierra 1500 SLE
    2024 GMC Sierra 1500 SLE
    2025 GMC Sierra 1500 SLE
    2026 GMC Sierra 1500 SLE
    2019 Chevrolet Silverado 1500 RST
    2020 Chevrolet Silverado 1500 RST
    2021 Chevrolet Silverado 1500 RST
    2022 Chevrolet Silverado 1500 RST
    2023 Chevrolet Silverado 1500 RST
    2024 Chevrolet Silverado 1500 RST
    2025 Chevrolet Silverado 1500 RST
    2026 Chevrolet Silverado 1500 RST
    2019 GMC Sierra 1500
    2020 GMC Sierra 1500
    2021 GMC Sierra 1500
    2019 Chevrolet Silverado 1500 LT Trail Boss
    2020 Chevrolet Silverado 1500 LT Trail Boss
    2021 Chevrolet Silverado 1500 LT Trail Boss
    2022 Chevrolet Silverado 1500 LT Trail Boss
    2023 Chevrolet Silverado 1500 LT Trail Boss
    2024 Chevrolet Silverado 1500 LT Trail Boss
    2025 Chevrolet Silverado 1500 LT Trail Boss
    2026 Chevrolet Silverado 1500 LT Trail Boss
    2019 Chevrolet Silverado 1500 LTZ
    2020 Chevrolet Silverado 1500 LTZ
    2021 Chevrolet Silverado 1500 LTZ
    2022 Chevrolet Silverado 1500 LTZ
    2023 Chevrolet Silverado 1500 LTZ
    2024 Chevrolet Silverado 1500 LTZ
    2025 Chevrolet Silverado 1500 LTZ
    2026 Chevrolet Silverado 1500 LTZ
    2019 GMC Sierra 1500 Elevation
    2020 GMC Sierra 1500 Elevation
    2021 GMC Sierra 1500 Elevation
    2022 GMC Sierra 1500 Elevation
    2023 GMC Sierra 1500 Elevation
    2024 GMC Sierra 1500 Elevation
    2025 GMC Sierra 1500 Elevation
    2026 GMC Sierra 1500 Elevation
    2019 Chevrolet Silverado 1500 High Country
    2020 Chevrolet Silverado 1500 High Country
    2021 Chevrolet Silverado 1500 High Country
    2022 Chevrolet Silverado 1500 High Country
    2023 Chevrolet Silverado 1500 High Country
    2024 Chevrolet Silverado 1500 High Country
    2025 Chevrolet Silverado 1500 High Country
    2026 Chevrolet Silverado 1500 High Country
    2019 Chevrolet Silverado 1500 Custom
    2020 Chevrolet Silverado 1500 Custom
    2021 Chevrolet Silverado 1500 Custom
    2019 Chevrolet Silverado 1500 Custom Trail Boss
    2020 Chevrolet Silverado 1500 Custom Trail Boss
    2021 Chevrolet Silverado 1500 Custom Trail Boss
    2022 Chevrolet Silverado 1500 Custom Trail Boss
    2023 Chevrolet Silverado 1500 Custom Trail Boss
    2024 Chevrolet Silverado 1500 Custom Trail Boss
    2025 Chevrolet Silverado 1500 Custom Trail Boss
    2026 Chevrolet Silverado 1500 Custom Trail Boss
    2019 GMC Sierra 1500 Denali
    2020 GMC Sierra 1500 Denali
    2021 GMC Sierra 1500 Denali
    2022 GMC Sierra 1500 Denali
    2023 GMC Sierra 1500 Denali
    2024 GMC Sierra 1500 Denali
    2025 GMC Sierra 1500 Denali
    2026 GMC Sierra 1500 Denali
    2022 GMC Sierra 1500 Limited Denali
    2022 Chevrolet Silverado 1500 LTD SSV
    2022 GMC Sierra 1500 Limited SLT
    2022 GMC Sierra 1500 Limited SLE
    2022 Chevrolet Silverado 1500 LTD High Country
    2022 Chevrolet Silverado 1500 LTD RST
    2022 Chevrolet Silverado 1500 LTD LT
    2022 GMC Sierra 1500 Limited Pro
    2022 GMC Sierra 1500 Pro
    2023 GMC Sierra 1500 Pro
    2024 GMC Sierra 1500 Pro
    2025 GMC Sierra 1500 Pro
    2026 GMC Sierra 1500 Pro
    2022 Chevrolet Silverado 1500 LTD LTZ
    2022 GMC Sierra 1500 Limited Elevation
    2022 Chevrolet Silverado 1500 LTD LT Trail Boss
    2022 Chevrolet Silverado 1500 LTD WT
    2023 Chevrolet Silverado 1500 PPV
    2024 Chevrolet Silverado 1500 PPV
    2025 Chevrolet Silverado 1500 PPV
    2026 Chevrolet Silverado 1500 PPV
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    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.

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

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