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    GMC Sierra Exhaust, Mufflers & Tips

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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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