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Pontiac Grand Prix Performance Mufflers

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Latest Customer Reviews

Flowmaster Super 44 Series Mufflers Reviews


2001 pontiac grand prix 3800

Reviewed By lynn l b (Cardington, OH) Reviewed for a 2001 Pontiac Grand Prix —6/7/2012 1:21 AM

i put a pair on my son car not sure what it would sound like on a v6 3.8 liter the sound is great with out any drone noise. my son loves it along with the preformance horsepower.

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Magnaflow Performance Mufflers Reviews


Magnaflow Performance Muffle

Reviewed By Jesse G (East Lansing, MI) Reviewed for a 2008 Chevy Impala —12/11/2014 7:38 PM

Overall it was a good Moffle ,but I change it for Flowmaster dbx in my opinion it is better moffle the sound is so much better,like music to my ears ,if you want a good muffle Flowmaster DBX you will be very happy. I have the 3" inlet, 3" outlet and it is awesome!!!!!

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Flowmaster 50 Series Delta Flow Mufflers Reviews


Sounds Awesome

Reviewed By Adam W (ABILENE, TX) Reviewed for a 2012 Dodge Ram —11/21/2014 2:46 PM

This muffler sounds great on my truck. I took it to a muffler shop and had it installed on my truck using the factory resonators and tips. It is a little louder than I thought it was going to be, but it sounds mean. I highly recommend all Flowmaster products. This muffler is loud, but not the loudest I have ever had.

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