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GMC Sierra Exhaust, Mufflers & Tips

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Latest Customer Reviews

Flowmaster 70 Series Big Block II Mufflers Reviews


Flowmaster 70 series big block

Reviewed By Chad H (Lake Charles, LA) Reviewed for a 2013 GMC Sierra —3/29/2017 4:55 AM

Overall, I am happy with the muffler. As my daily driver and primary family vehicle used for traveling, I didn't want anything too loud. This muffler is a little louder than what I expected, comparing to a 50 series installed on same truck. I removed the 50 series last year and had to go back with the factory muffler due to a drone when pulling my trailer or boat. Using Flowmaster's sound chart, I thought the 70 series would be only choice as it looked to be the quietest muffler Flowmaster makes

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Flowmaster 50 Series HD Mufflers Reviews


Flowmaster 50 Series HD Review

Reviewed By Donny S (Laceys Spring, AL) Reviewed for a 2002 GMC Sierra —4/6/2016 6:09 AM

Awesome experience again shopping with AutoAnything. Love the muffler, sound is just right!

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Flowmaster 50 Series Delta Flow Mufflers Reviews


My flowmaster

Reviewed By Mark M (Center Valley, PA) Reviewed for a 2015 GMC Sierra —4/3/2016 2:28 PM

Easy install , on the quiet side but .starting to get louder the longer it is on

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