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    GMC Sierra Exhaust, Mufflers & Tips

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    GMC Sierra Borla Exhaust Systems

    GMC Sierra Flowmaster Exhaust Systems

    GMC Sierra Magnaflow Exhaust Systems

    GMC Sierra MBRP Exhaust Systems

    GMC Sierra Gibson Exhaust Systems

    GMC Sierra Corsa Performance Exhaust

    GMC Sierra JBA Cat4ward Headers

    GMC Sierra Kooks Street Headers

    GMC Sierra Magnaflow Performance Mufflers

    GMC Sierra JBA Performance Exhaust

    GMC Sierra Gibson Metal Mulisha Exhaust Systems

    GMC Sierra Kooks Exhaust Systems

    GMC Sierra Flowmaster Super 10 Series Mufflers

    GMC Sierra dB Performance Exhaust by Corsa

    GMC Sierra Gibson Exhaust Performance Headers

    GMC Sierra JBA Mid-Pipes

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    Latest Customer Reviews

    Flowmaster Exhaust Systems Reviews

    2014 GMC Sierra sle crew cab short bed

    Reviewed By Brian M (COOS BAY, OR) Reviewed for a 2014 GMC Sierra —6/20/2017 8:59 PM

    Nice easy install, wish it would have come with a new clamp to the cat, cause the hardware on the orginal was a little rusty

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    Gibson Exhaust Systems Reviews

    Very nice sound

    Reviewed By Devon M (Earleville, MD) Reviewed for a 2008 GMC Sierra —6/17/2017 7:50 AM

    Very nice exaust low rumble at idle nice growl at acceleration. Only issue is the clamps suck.other then that extremely happy with exhaust system

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    Magnaflow Exhaust Systems Reviews

    Better Now

    Reviewed By Philip B (COLUMBIA, TN) Reviewed for a 2017 GMC Sierra —6/1/2017 5:54 AM

    The Magnaflow exits more to the side and the polished 6" tip looks much better than stock. Gets rid of the factory 3" diffuser and unattractive shroud. Lower EGT keeps the PCM from reducing power on long hills pulling 15K load.

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