SKU: 53651161913

2020-2026 Chevrolet Silverado Cat-Back Exhaust Flowmaster Stainless

$503.08 $558.98
Save 10%
No.2 Bestseller on communitymontessori.net >

Pay in installments of $139.75 with ShopPay, AfterPay and Klarna

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Jul 22 - Jul 27

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

Description

2020-2026 Chevrolet Silverado Cat-Back Exhaust Flowmaster StainlessOverview: The Flowmaster American Thunder Cat back exhaust system for the 2020 2026 Chevy Silverado and GMC Sierra 2500HD and 3500HD trucks with the 6. 6L gas engine, has a moderate to aggressive sound level inside and outside of the truck, with all of the performance benefits you expect from Flowmaster. Designed for the Crew Cab, Standard Bed (6. 5 ft.) models only, this bolt on, emissions legal system features a stainless steel 50 Series HD muffler

Overview:

The Flowmaster® American Thunder® Cat-back exhaust system for the 2020-2026 Chevy Silverado and GMC Sierra 2500HD and 3500HD trucks with the 6.6L gas engine, has a moderate to aggressive sound level inside and outside of the truck, with all of the performance benefits you expect from Flowmaster®. Designed for the Crew Cab, Standard Bed (6.5 ft.) models only, this bolt-on, emissions-legal system features a stainless steel 50 Series HD™ muffler and large dual 3.00-inch 409 stainless steel mandrel-bent tailpipes that can be configured to exit either dual straight out the back, or dual out the sides behind the rear wheels which is best suited for towing applications. The system is finished off with a pair of large 4.00-inch polished 304 stainless steel tips and is covered by our Lifetime Limited Warranty. Designed for an easy fit, this system includes all necessary parts and hardware for installation.

Features:

  • Super 50 Series performance muffler offers a moderate to mild sound level and increased performance
  • 409 stainless steel construction delivers extra durability and improved long-term corrosion resistance
  • Tuned resonators control interior sound level for a comfortable ride
  • Max dyno gains of 11 hp and 15 lb-ft at the rear wheels
  • 2.50-inch 16-gauge mandrel bent stainless steel tubing helps maintain maximum exhaust flow for better power
  • Includes all necessary hardware for an at home installation
  • 4.00-inch polished stainless steel tip adds a custom look to the vehicle
  • Uses factory hanger locations for easy installation

    • 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 Type: Flanged
  • Main Piping Diameter: 3
  • Mount Type: Uses Factory Hangers
  • Mounting Bracket Included: Yes
  • Muffler Body Height: 5
  • Muffler Body Length: 18
  • Muffler Body Material: 409 Stainless Steel
  • Muffler Body Shape: Oval
  • Muffler Body Width: 10
  • Muffler Color: Black
  • 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: 3.5
  • Muffler Inlet Location: Center
  • Muffler Inlet Outside Diameter: 3.63
  • Muffler Outlet Connection: Slip-Fit
  • Muffler Outlet Diameter: 3
  • Muffler Outlet Location: Dual
  • Muffler Outlet Quantity: 2
  • Muffler Overall Length: 24
  • Muffler Part Number: Kit Only
  • Muffler Quantity: 1
  • Muffler Series: 50 Series HD
  • Muffler Type: Reflection
  • Pipe Color: Silver
  • Pipe Material: 409 Stainless Steel
  • Sound Level: Aggressive / Moderate
  • Spring Bolt Kit Included: No
  • Tail Pipe Outlet Outside Diameter: 3
  • Tail Pipe Quantity: 2
  • Tail Pipe Tapered Outlet: No
  • Tip Logo: Embossed
  • Type: Cat-Back
  • Valve Included: No
  • Valve Type: Not Applicable
  • Part Number: 817933

    • Applications:

    • 2020-2026 Chevrolet Silverado 2500 HD 401 CID
    • 2021-2026 Chevrolet Silverado 3500 HD 401 CID
    • 2020-2026 GMC Sierra 2500 HD 401 CID
    • 2021-2026 GMC Sierra 3500 HD 401 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: 53651161913

    Discover Niche Categories That Outsell

    Top-Converting Item to Boost Your Average Order

    4.3 ★★★★★
    Based on 7 reviews
    Sort
    Highest Rating
    Newest First
    Oldest First
    Product Reviews
    A
    Verified Purchase
    Anna
    Port Orchard, US
    ★★★★★ 5
    Such a Pretty Backpack.
    Color: Apricot, Size: 16 Inch
    I love this backpack. It's very beautiful and very comfortable to wear. I mainly bought it for a trip to Prague, but I love this bag so much I started using it daily. The quality feels good all around. The zippers are really smooth and the straps are very comfortable. One of my friends happened to take such a liking to it that she ordered her own too. The different pockets allow for easy organization and quick access. It's very stylish and so far, its been quite durable. I've used it for a little less than 5 months and a trip to the other side of the world, but its still holding up.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on March 23, 2026
    Y
    Verified Purchase
    Yunely Machado
    Houston, US
    ★★★★★ 5
    "Quality and style in a single backpack"
    Color: Apricot, Size: 16 Inch
    "The backpack has an elegant and minimalist design, with a smooth and good quality finish. It is spacious, has several practical pockets and looks resistant for daily use. The neutral color makes it easy to combine and perfect for both work and travel. Very functional and with excellent presentation.”
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on December 9, 2025
    K
    Verified Purchase
    Khaila Williams
    Whiting, US
    ★★★★★ 5
    Quality for your money.
    Color: Apricot, Size: 16 Inch
    I am beyond pleased. Everything works well. I was just think yesterday after looking at it that i will have this bag long because it strong like keep for years strong, no joke. It is worth it. Easy to use, the space is enough for a University Student like me, and it adjsut well but I'm guessing it's manufacturing problem as one starp is longer than the other and feels funny at time but I work around it and adjust to my comfort.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on March 24, 2026
    K
    Verified Purchase
    Katherin
    Lexington, US
    ★★★★★ 5
    Perfect backpack for work and daily use
    Color: Apricot, Size: 16 Inch
    The backpack has a clean, professional look and the material feels sturdy and smooth. The size is perfect for a 16-inch laptop, with good padding and comfortable straps. I use it daily for work, and everything fits well inside, including my laptop, charger, and a few essentials. It stays organized without feeling bulky and is very comfortable to carry
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on January 11, 2026
    E
    Verified Purchase
    emma
    Draper, US
    ★★★★★ 5
    Comfy and supportive
    Size: 36B, Color: Beige
    the fit of this bra is amazing, but i did found out i’m a cup bigger and i’ll be ordering a new size, i can tell this bra is perfect! i’ve been looking for a bra that’s soft, comfy, but also supportive and creates a natural appearance. the durability and quality of the bra seems great, it seems strong but i will update if otherwise. the underwire keeps the shape of the girls but it feels like there’s nothing there! usually i have to go to the restroom a few times a day at work to readjust, but this bra held in place. obviously when leaning over or stretching a bit you do have to readjust, not as much as other bras though. like the description and photos show, there is no padding. in a t-shirt it may matter but i mostly wear sweatshirts and graphics :)
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on April 12, 2026

    recommand products

    Glossmore Recliner
    390.00
    Kallari Credenza with Desk Return
    640.00
    Elbrim Dresser
    190.00
    High Profile Ottoman
    190.00
    Kallenny Sofa Table
    190.00