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GMC Flowmaster Exhaust, Mufflers & Tips

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Latest Customer Reviews

Flowmaster Exhaust Systems Reviews


Went from sounding like a pussycat to an angry lion!

Reviewed By Robert V (MOUNT MORRIS, MI) Reviewed for a 2009 GMC Sierra —3/27/2018 2:26 PM

Very happy with thr outlaw system from flowmaster. Had it installed at a local muffler shop and had them weld it up to insure no exhaust leaks. Sounds killer and would recommend it to anyone looking for a good exhaust system. Its not too loud in the cab either like I thought it would be. Its perfect!

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Flowmaster Direct-Fit Catalytic Converters (50-State Legal) Reviews


Passing smog

Reviewed By Martin P (GALT, CA) Reviewed for a 1995 GMC Sierra —6/12/2017 3:31 AM

Sweetness

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Flowmaster Super 10 Series Mufflers Reviews


Not too shabby

Reviewed By Zackary A (BINGHAMTON, NY) Reviewed for a 2015 GMC Sierra —4/14/2017 8:19 PM

Too quiet with just the muffler . Had to cut out the resonator. Sounds pretty throaty now probably perfect for a lot of people .

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