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GMC Flowmaster Exhaust, Mufflers & Tips

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Latest Customer Reviews

Flowmaster Super 40 Series Mufflers Reviews

Great sound and gas mileage

Reviewed By Andrew V (EAST WINDSOR, CT) Reviewed for a 2013 GMC Sierra —10/11/2013 8:04 AM

Shipped very fast i literally got an email saying it was shipped and a txtfrom my wife that it was delivered at nearly the same time. Noticeable better gas mileage i had the same muffler on my last gmc truck and will continue to use super 40 mufflers

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Flowmaster 50 Series Big Block Mufflers Reviews

Truck muffler

Reviewed By Douglas H (miamisburg, OH) Reviewed for a 2012 GMC Sierra —4/11/2013 9:08 PM

Just like you described. No complaints.

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Flowmaster HP-2 Series Hushpower Mufflers Reviews


Reviewed By Russell G (ORLANDO, FL) Reviewed for a 1999 GMC Jimmy —8/31/2012 8:45 PM

This muffler its just what I was looking for, the performance of a flowmaster and the sound of a super car.

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