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Kooks 3 in. High Flow Catted Y-Pipe (09-13 4.8L, 5.3L Sierra 1500 w/ Long Tube Headers)

Market Price $743.99 You Save 12% ($86.91)
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  • Item S500725

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    Features & Details

    • Attaches at OEM Outlet
    • Race Catalytic Converters Included
    • High-Flow Design
    • Stainless Steel Build
    • Use with Kooks Long Tube Headers Only
    • Fits 2009-2013 4.8L or 5.3L GMC Sierra's
    High-Performance Perfection. Making upgrades to your 4.8L or 5.3L Sierra can boost its performance, helping it achieve its highest potential. For a big power boost, install this Kooks 3 in. High-Flow Catted Y-Pipe. Increasing exhaust flow and efficiency, this pipe is used with Kooks Headers only.

    Outflow the Competition. Due to its high-flow design, this Pipe gets exhaust out faster so that your engine can run more powerfully. It has a diameter of 3 inches for width that offers plenty of space for the high outflow design. Racing catalytic converters are included to help the high-flow process.

    Seamless Integration. Intended to integrate into the existing OEM exhaust system, this pipe fits the stock exhaust outlet. It is used with Kooks Headers for optimum performance enhancement. The pipe is made from stainless steel for a durable fit with the existing system.

    Application. This Kooks 3 in. High-Flow Catted Y-Pipe is specifically designed to be used on the 2009-2013 4.8L or 5.3L GMC Sierra equipped with a set of Kooks Long Tube Headers. This Y-Pipe is not legal in California.

    Fitment: 2009 2010 2011 2012 2013 Details

    MPN# 28553200

    CA Residents: WARNING: Cancer and Reproductive Harm -

    What's in the Box
    • (1) Y-Pipe w/ Cats
    Installation Info
    Will it fit my Sierra?

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    Customer Reviews (1) Write a Review

    Overall Rating 5

    out of 5 stars

    • Loudness / Volume 5 5
    • Exhaust Note 5 5
    • Fit & Finish 5 5
    • Bang For Your Buck 4 4

    • 5/5

      December 05, 2018

      Great Y-Pipe

      I have the long tube headers along with the y-pipe And a Borla cat back exhaust it sounds Awesome !!!! but I need to put a tune in it now because the engine light comes on since Iv'e put all of this on.


      Year: 2012 Submodel: SLE Engine: 5.3L V8

      Helpful (4)

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