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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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MBRP Universal Resonators Reviews


Quality engineered part

Reviewed By Cole H (Chicago, IL) Reviewed for a 2007 Hummer H3 —9/2/2015 3:53 AM

It's pretty simple. Rattle trap exhaust is now smooth reving, with zero loss of power after updated dyno. Only issue would be weight, pretty heavy part to add in. One of the ideas behind this Hummer H3 was to reduce weight and all lite weight exhaust just got killed back to stock weight with this installed.

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