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Gibson 1-3/4 in. Performance Headers - Chrome (14-18 5.3L, 6.2L)

Item S500756
AmericanTrucks no longer carries the Gibson 1-3/4 in. Performance Headers - Chrome (14-18 5.3L, 6.2L). Please check out 2019-2021 GMC Sierra Headers for an updated selection.
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    Product Information

    Features, Description, Q&A, Specs & Installation


    • Direct Replacements for Factory Manifolds
    • Boosts Performance, Efficiency, and Drivability
    • Accommodates Factory Emissions Connections
    • Uses Existing Factory Crossover Pipe
    • Chrome Finish for Dazzling Looks
    • CARB-Certified and 50-State Street-Legal
    • CARB EO Number: D-411-11
    • 16-Gauge Stainless Steel Construction
    • Fits 2014-2018 5.3L or 6.2L GMC Sierra's


    The Exhaust Upgrade That Makes Sense. Keep your emissions compliance and factory warranty while upgrading your 5.3L or 6.2L Sierra's performance with these chrome-finished, stainless-steel headers from Gibson. These are a drop-in replacement for factory cast manifolds. All stock ECM and emissions connections will work with this upgrade. Enjoy improved performance, efficiency, and that throaty rumble without complicating emissions testing or endangering your factory warranty.

    Built to Last the Life of Your Truck. Gibson uses mandrel-bending for maximum smoothness on the curves of the 1.75-inch diameter 16-gauge stainless steel. All port flanges are laser-cut. They won't warp against the heads. Gibson dyno-tunes these headers to provide a performance boost and that impressive, strong sound. These headers are 50-state emissions-compliant, CARB EO# D-411-11, and won't void your factory vehicle warranty. Gibson covers them under a lifetime warranty.

    Straightforward Install. Installing headers is not an easy task under any conditions, but Gibson includes all needed hardware and gaskets. No welding needed. These are direct replacements for factory cast manifolds. Full step-by-step instructions will have you enjoying the benefits of tubular headers in no time.

    Application. These chrome 1-3/4 in. Gibson Performance Headers are specifically designed to be used on the 2014-2018 5.3L or 6.2L GMC Sierra's without the EGR.


    CA Residents: WARNING: Cancer and Reproductive Harm -

    Installation & What's in the Box

    Installation Info

    What's in the Box

    • (2) Coated Headers
    • (1) Hardware and Gasket Kit

    Questions & Answers

    10 More Questions

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