SKU: 7435164432

2020-2026 Chevrolet Silverado Performance Muffler Flowmaster Stainless

$191.67 $212.97
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Ships within 48 hours · Estimated delivery Jul 25 - Jul 30

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Description

2020-2026 Chevrolet Silverado Performance Muffler Flowmaster StainlessOverview: Flowmaster's Flow FX Direct Fit Muffler exhaust system for the 2020 2026 GM 2500HD and 3500HD trucks with the 6. 6L gas engines gives you a great value packed way to help you customize your GM truck to your personality. This performance muffler system fits both 2 4 Wheel drive models and is manufactured from 409 stainless steel for years of trouble free service and performance. Features include a 3. 50 inch inlet pipe leading into a 409

Overview:

Flowmaster's® Flow FX Direct-Fit Muffler exhaust system for the 2020-2026 GM 2500HD and 3500HD trucks with the 6.6L gas engines gives you a great value packed way to help you customize your GM truck to your personality. This performance muffler system fits both 2/4 Wheel drive models and is manufactured from 409 stainless steel for years of trouble-free service and performance. Features include a 3.50-inch inlet pipe leading into a 409 stainless steel Flow FX series "straight-through" muffler for great sound and maximum performance and no drone. The muffler then connects to the factory tailpipe for a simple and effective performance upgrade. Max dyno gains of 7 hp and 5 lb-ft at the rear wheels. This results in better acceleration and towing performance. The system uses all the factory hanger locations and connections for an easy installation that you can do at home. Kits include installation instructions and all necessary hardware. Backed by Flowmaster's Lifetime Limited Warranty.

Features:

  • 3.5-inch mandrel bent 16-gauge 409 stainless steel tubing maximizes exhaust flow and improves durability
  • Kit includes complete hardware and factory styled hangers in the stock locations for an easy installation
  • A tuned Flow FX style muffler delivers a deep, aggressive to moderate performance tone and improves exhaust flow
  • Max increases of up to 12 hp and 11 lb-ft over the stock exhaust at the wheels
  • Tuned performance muffler eliminates interior drone
  • Maintains factory warranty
  • Lifetime Limited Warranty

    • Specs:

  • Body Diameter: 5
  • Body Height: 5
  • Body Length: 18
  • Body Material: 409 Stainless Steel
  • Body Width: 8
  • Brand: Flowmaster
  • Catalytic Converter Included: No
  • Clamping Type: Flat Band
  • Clamps Included: Yes
  • Color: Natural
  • Emission Code: 5
  • Exhaust Series: Flow FX
  • Exhaust Tip Quantity: 0
  • Exit Position: OEM
  • Exit Position: OEM
  • Finish: Natural
  • Gasket Or Seal Included: No
  • Grade Type: Performance
  • Heat Shield: No
  • Heat Shield Attached: No
  • Inlet Diameter: 3.5
  • Inlet Inside Diameter: 3.52
  • Inlet Location: Center
  • Inlet Outside Diameter: 3.11
  • Inlet Quantity: 1
  • Inlet Type: Slip-Fit
  • Main Piping Diameter: Center
  • Material: 409 Stainless Steel
  • Mount Type: Uses Factory Hangers
  • Muffler Body Length: 10
  • Muffler Body Material: 409 Stainless Steel
  • Muffler Body Shape: Round
  • Muffler Body Width: 8
  • Muffler Color: Natural
  • Muffler Finish: Natural
  • Muffler Inlet Location: Center
  • Muffler Material: 409 Stainless Steel
  • Muffler Outlet Location: Center
  • Muffler Part Number: Kit Only
  • Muffler Quantity: 1
  • Muffler Series: Flow FX
  • Muffler Shape: Oval
  • Muffler Type: Absorption
  • Outlet Diameter: 3.5
  • Outlet Inside Diameter: 3.52
  • Outlet Location: Center
  • Outlet Outside Diameter: 3.65
  • Outlet Quantity: 1
  • Outlet Type: Slip-Fit
  • Overall Length: 34.25
  • Pipe Material: 409 Stainless Steel
  • Shape: Oval
  • Single Dual: Single
  • Sound Level: Aggressive / Moderate
  • System Type: Direct-fit Muffler
  • Tubing Diameter: 3.5
  • Type: Direct-fit Muffler
  • Valve Actuator Included: No
  • Valve Included: No
  • Valve Type: Not Applicable
  • Part Number: 718155

    • Applications:

    • 2020-2026 Chevrolet Silverado 2500 HD 401 CID
    • 2020-2026 Chevrolet Silverado 3500 HD 401 CID
    • 2020-2026 GMC Sierra 2500 HD 401 CID
    • 2020-2026 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: 7435164432

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    4.4 ★★★★★
    Based on 17 reviews
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    Product Reviews
    S
    Verified Purchase
    Sammy
    Pawtucket, US
    ★★★★★ 5
    Solid Shelves
    Style: 36inch 4 tier, Style: 36inch 4 tier
    These are easy to install with the right tools. (STUDS ARE KEY) The only thing to note is, that when assembling the pipes, it takes patience for them to tighten. BUT IT DOES! DONT GIVE UP!!💁‍♀️ They are sturdy, roomy shelves, and very very stylish. The color is very spot on. The shelves in particular, function just as described.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on October 10, 2025
    N
    Verified Purchase
    Ninja Nut
    Massapequa, US
    ★★★★★ 5
    Very good product! Gorgeous wood
    These 4’ wide shelves are very nice. The wood is blond and gorgeous. I bought 2 sets. The hardware is very heavy duty iron piping!
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on November 25, 2025
    C
    Verified Purchase
    Carl Spackler
    Houston, US
    ★★★★★ 4
    Great when installed. Some problems
    Style: 48inch 2 tier
    The shelves are assembled and installed on my wall. I'm happy with them. They look great and are very sturdy. What prevents a 5-star rating? The instructions were poor. Not a huge deal as I was able to figure things out. The wall anchors that came with were cheap and (in my opinion) unusable. I went to Lowe's and bought some drywall anchors that were rated for 79 pounds and they worked well. During the install, I wasn't sure if I should attach the wall plates and assemble the shelves on the wall, or assemble everything and then attach it to the wall. Assembling before hanging was the way to go but it took two people. One other minor thing: The shelves are stained on one side an not the other. Since I have them high up on a wall, I'm looking at the unstained side. Yes, I can stain the unstained part, but it would be nice if they had just stained the top and bottom at the factory.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on August 22, 2022
    K
    Verified Purchase
    Krista Webster
    Waukegan, US
    ★★★★★ 5
    Beautiful Shelving Unit
    Style: 48 inch 3 tier
    The shelving unit is beautiful. It has not been hung yet, but I plan on using it to replace my entertainment center and hang my TV above it. I am so excited as the shelves matched perfectly to my furniture so I believe it will be a lovely addition to my living room and take up less space than the entertainment center does.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on March 18, 2026
    H
    Verified Purchase
    Hilda
    New York, US
    ★★★★★ 5
    Shelves
    Style: 5-Tier Shelf Brackets, Hardware Only
    Great shelves, strong and they look great.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on May 2, 2026

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