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Pontiac Firebird Performance Mufflers

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Latest Customer Reviews

Flowmaster Original 40 Series Mufflers Reviews

40 Series

Reviewed By Ian M (Sedgwick, KS) Reviewed for a 1999 Pontiac Firebird —7/10/2011 3:32 AM

Love the sound of my 40 series. I put it on my 99 Trans Am. Sounds great and turns heads. Love it.

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Flowmaster 40 Series Delta Flow Mufflers Reviews

Flowmaster 40 series Delta Flow

Reviewed By John Y (Novi, MI) Reviewed for a 1968 Pontiac Firebird —8/15/2007 10:14 AM

These mufflers sound good outside of the car. They give the car a nice growl. I have a 1968 Firebird with a 400 engine. A little more resonance inside of the car than I expected. I am running 2 1/2" exhaust.

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Flowmaster Super 44 Series Mufflers Reviews

Love Flowmaster!!

Reviewed By Charmaine N (LOGAN, UT) Reviewed for a 2015 GMC Sierra —10/7/2015 10:51 PM

I love my Super 44 series Flowmaster muffler for my '15 GMC Sierra!! Sounds great! Awesome throaty tone! Big savings compared to else where!

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