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Pontiac Grand Prix Performance Mufflers

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Latest Customer Reviews

Flowmaster Super 44 Series Mufflers Reviews


great

Reviewed By jeremy t (LIVINGSTON, TN) Reviewed for a 1998 Pontiac Grand Prix —12/17/2014 8:08 PM

Love the sound easy to install and happy with the fast shipping

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Flowmaster Super 40 Series Mufflers Reviews


sweat

Reviewed By Michael L (Pennellville, NY) Reviewed for a 2004 Pontiac Grand Prix —4/30/2013 5:26 PM

wasn't really sure how they would sound with a 3.8L but I guess it is what it is its not some monster v8.But yes I Really do enjoy the deep sound, Ive ALWAYS loved the sound of FLOWMASTER.

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Flowmaster Super 50 Series SUV Mufflers Reviews


Cabin Sound

Reviewed By Glenn S (Waupaca, WI) Reviewed for a 2015 GMC Acadia —5/19/2016 8:20 AM

I like my Flowmaster 50 series muffler but i wish I would have gotten a 70 series Flowmaster for less noise, I do not mind a little noise in back of the car but cabin noise bugs me, as they say after the fact. It would be nice if there was a return policy if we the customer was not happy and was going to exchange for a similar product.

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