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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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Magnaflow Performance Mufflers Reviews


Magnaflow 12579

Reviewed By Jeff T (Des Moines, IA) Reviewed for a 1999 Dodge Dakota —6/20/2017 3:20 AM

The 12579 is a large case single inlet, single outlet muffler. Internally the exhaust is split running the length of the case rejoining before exiting. The muffler has a nice quiet rumble at idle with no drone at speed. It has a nice performance sound when the throttle blades are opened wide. Install consists of headers, 2 1/4" to 3" Y-pipe, 3" through remainder.

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