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2014 GMC Sierra Flowmaster Exhaust

Sierra's interior is crafted with premium materials and attention to details, and you don't have to expect anything less with the 2014 GMC Sierra Flowmaster Exhaust System. Immediately boost the performance, sound and MPG of your ride with one of these high-performance Flowmaster Exhaust Systems, designed to be an effective replacement for your standard, restrictive factory system. The Flowmaster Exhaust System for your 2014 GMC Sierra is sure to provide your vehicle with greater fuel economy and horsepower. These performance exhaust systems use mandrel-bent tubing to maximize exhaust flow and minimize restrictions. Your Sierra has always proven to be reliable on the road … it's time you returned the favor with this easy upgrade today. Check out the numerous Flowmaster Exhaust System reviews on our site and see what the buzz is all about.
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Latest Customer Reviews

Magnaflow Exhaust Systems Reviews

Awsome exhaust system

Reviewed By Robert C (Chino Valley, AZ) Reviewed for a 2014 GMC Sierra —8/12/2017 6:26 PM

I saw improved performance immediately, in addition, I got a cool throaty sound as well. If you're looking for either of these two features, I would strongly recommend this exhaust.

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Borla Exhaust Systems Reviews

Sierra 6.2 2014 S Type

Reviewed By Christopher M (SWANSBORO, NC) Reviewed for a 2014 GMC Sierra —7/21/2017 2:57 AM

Looks awesome, easy as hell to install. The sound is nothing special. It's defiantly much louder vs stock.

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Flowmaster Exhaust Systems Reviews

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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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