SKU: 44122486288

2011-2018 Chevrolet Silverado Cat-Back Exhaust Flowmaster Stainless

Sale price$503.08 Regular price$558.98
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Ships within 48 hours · Estimated delivery Jul 16 - Jul 21

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Description

2011-2018 Chevrolet Silverado Cat-Back Exhaust Flowmaster StainlessOverview: This Force II Cat back stainless steel exhaust system is designed for 2011 2018 Chevrolet Silverado and GMC Sierra 1500 trucks with the 6. 2L engine. Features include large 3. 50 inch mandrel bent tubing flowing into a Flowmaster 50 Series Big Block muffler for a muscular exterior sound, while the built in Helmholtz chamber helps control the interior resonance. The system uses the factory hanger locations for an easy installation and is

Overview:

This Force II® Cat-back stainless steel exhaust system is designed for 2011-2018 Chevrolet Silverado and GMC Sierra 1500 trucks with the 6.2L engine. Features include large 3.50-inch mandrel-bent tubing flowing into a Flowmaster 50 Series Big Block™ muffler for a muscular exterior sound, while the built-in Helmholtz chamber helps control the interior resonance. The system uses the factory hanger locations for an easy installation and is finished off with a highly polished 4.00-inch 304 stainless steel tip embossed with the Flowmaster® logo. This bolt-on system delivers noticeable performance gains while offering moderate interior and exterior sound levels and is covered by our Lifetime Limited Warranty.

Features:

  • Large 4.00-inch Black Ceramic Coated Exhaust Tips
  • Moderate to Aggressive Exterior Performance Tone
  • 80 Series Cross-flow Performance Muffler
  • Mandrel-Bent Stainless Steel Tubing
  • Uses the Factory Hanger Locations
  • Minimal Interior Resonance
  • Lifetime Limited Warranty
  • 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: Force II
  • Exhaust Tip Color: Silver
  • Exhaust Tip Connection: Welded
  • Exhaust Tip Cut: Angled
  • Exhaust Tip Edge: Rolled Edge Angle Cut
  • Exhaust Tip Finish: Polished
  • Exhaust Tip Material: 304 Stainless Steel
  • Exhaust Tip Quantity: 1
  • Exhaust Tip Shape: Round
  • Exhaust Tip Wall: Single Wall
  • Exit Style: Single Out Side
  • Finish: Natural
  • Gasket Or Seal Included: No
  • Grade Type: Performance
  • Hangers Included: Yes
  • Heat Shield Included: No
  • Inlet Diameter: 3.5
  • Inlet Type: Clamp-On
  • Main Piping Diameter: 3.5
  • Mounting Bracket Included: No
  • Muffler Body Diameter: 12
  • Muffler Body Height: 5
  • Muffler Body Length: 22
  • 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: 3.5
  • Muffler Inlet Outside Diameter: 3.5
  • Muffler Outlet Connection: Slip-Fit
  • Muffler Outlet Quantity: 1
  • Muffler Part Number: Kit Only
  • Muffler Quantity: 1
  • Muffler Series: 50 Series Big Block
  • Muffler Type: Chambered
  • Pipe Color: Silver
  • Pipe Material: 409 Stainless Steel
  • Sound Level: Moderate
  • Spring Bolt Kit Included: No
  • Tail Pipe Outlet Outside Diameter: 3.5
  • Tail Pipe Quantity: 1
  • Tail Pipe Tapered Outlet: No
  • Type: Cat-Back
  • Valve Included: No
  • Valve Type: Not Applicable
  • Part Number: 817603
  • Applications:

    • 2011-2018 Chevrolet Silverado 1500 376 CID
    • 2011-2018 GMC Sierra 1500 376 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: 44122486288

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    Bruce
    Port Orchard, US
    ★★★★★ 5
    Best for 12S high current battery wires
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    Reviewed in the United States on May 23, 2026
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    MakerTool
    Belleville, US
    ★★★★★ 5
    Loong jumper test cables.
    Size: silicone wire red 25ft and black 25ft, Color: Red and Black
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    Reviewed in the United States on December 6, 2025
    R
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    Rhbones
    Lowell, US
    ★★★★★ 5
    Works for my 2011 115hp Etec
    Size: For 75-250 HP
    Exact fit and cheaper than a trip to a repair shop. Make sure you have the proper gasket sealer, a good scrapper that's not going to dig into the sealing surface, and tools for the job. I went on my computer and downloaded a video that walked me through the process. I'm a mechanic by trade but wanted to ensure everything was correct. I've been running the motor now for a couple of months. Peeing just as it's supposed to. No more delivering, waiting, and retrieving my boat from the shop for its routine service. Just follow your owner's manual to make sure you do all the necessary maintenance.
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    Reviewed in the United States on February 8, 2025
    C
    Verified Purchase
    Chelsey R
    Pawtucket, US
    ★★★★★ 5
    Great replacement
    Size: For 5.5HP 6HP 7.5HP
    Works as it should. Easy to swap out.
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    Reviewed in the United States on August 12, 2025
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    Verified Purchase
    Dan
    Phoenix, US
    ★★★★★ 5
    Works
    Size: For 60 65 70 75 HP
    Works great
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on May 21, 2026

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