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Stainless Works 1-7/8 in. Headers w/ Catted Y-Pipe - Factory Connect (07-13 5.3L Sierra 1500)

Item S500743
Market Price $2,034.55 You Save 12% ($234.06)
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$1,800.49 (kit)

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    Features & Details

    • High-Flow Catalytic Converter
    • Improves Horsepower and Torque
    • Stainless Steel Components
    • Long Tube
    • 1-7/8 in. Diameter Primary Tubes
    • 304 Stainless Steel Header
    • Includes Y-Pipe
    • Full Installation Kit
    • Street Use
    • Designed for Extended Cab with the Standard Box or Crew Cab with the Short Box
    • Fits 2007 to 2013 5.3L GMC Sierra 1500s
    Better Flow for Improved Performance. If you're looking to improve the power and performance of your GMC Sierra 1500, you need the Stainless Works 1-7/8 in. Headers with Catted Y-Pipe. Working together, the factory connects long tube headers, High-flow cats, and Y-pipe increase your vehicle's exhaust flow, delivering far superior rear-wheel torque and horsepower over your factory exhaust system.

    Stainless Steel Construction. The Stainless Works 1-7/8 in. Headers with Catted Y-Pipe features quality construction that's built to last. The 1-7/8 in. mandrel-bent long tube headers are made from 304 stainless steel tubing, which not only improves exhaust flow but also resists corrosion. TIG-welded construction and extra thick, laser-cut, 3/8 in. flanges add even more strength and solidity to the system. The headers meet at a 3-in. slip-fit collector with merge spikes.

    Installs with Factory Cat-Back System. This "Made in the USA" kit is install-ready, including clamps, extensions, bolts, and RTV silicone. The Stainless Works 1-7/8 in. Headers with catted Y-pipe installs directly with your Sierra's existing factory cat-back system.

    Application. The Stainless Works 1-7/8 in. Headers with Catted Y-Pipe fit 2007 to 2013 5.3L GMC Sierra 1500 models with the following cab and box configurations.
    • Extended Cab with the Standard Box
    • Crew Cab with the Short Box

    Fitment: 2007 2008 2009 2010 2011 2012 2013 Details


    CA Residents: WARNING: Cancer and Reproductive Harm -

    What's in the Box
    • (1) Driver Side Header
    • (1) Passenger Side Header
    • (1) Driver Side Catted Lead Pipe
    • (1) Passenger Side Catted Lead Pipe
    • (1) Y-Pipe
    • Hardware
    Installation Info
    Will it fit my Sierra 1500?

      Customer Photos

        Questions & Answers (1)

        1 Top Rated Question

        which headers is recommended for a single-side exhaust system? catted y-pipes or x-pipes?

        • We recommend catted with a Y pipe for most setups. Please contact our customer service department so that we can help you determine what will fit your needs the best.

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