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    GMC Sierra Exhaust Headers & Manifolds

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    GMC Sierra JBA Cat4ward Headers

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    GMC Sierra FlowTech Exhaust Manifolds

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    Latest Customer Reviews

    JBA Cat4ward Headers Reviews


    2015 Denali 6.2

    Reviewed By Bill B (New Hartford, NY) Reviewed for a 2015 GMC Sierra —11/17/2016 3:59 AM

    These just added the snap I was looking for from the accelerator you can here and feel the difference in the motor. I partnered this with a K&N 77 series intake and Borla touring exhaust and it brought the 6.2 alive. Better power great sound and picked up 1.5 mpg.

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    Kooks Street Headers Reviews


    Big difference

    Reviewed By Randy M (Vancouver, WA) Reviewed for a 2015 GMC Sierra —10/21/2016 5:07 AM

    Nice quality and noticeable HP difference

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    Gibson Exhaust Performance Headers Reviews


    Worth every penny

    Reviewed By Alonso G (KEYES, CA) Reviewed for a 2000 GMC Sierra —8/21/2015 8:14 PM

    I got the stainless ones great price, first thing I noticed when I first turned on my truck with the headers on was the throttle response and also mpg gain and when they started breaking in the hp and torque gains started coming in and I noticed the gains as well very satisfied.

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