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2006 GMC Sierra Performance Mufflers

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Latest Customer Reviews

Flowmaster 50 Series Delta Flow Mufflers Reviews


Happy fiancé

Reviewed By katelynn o (YORBA LINDA, CA) Reviewed for a 2006 GMC Sierra —12/27/2013 10:40 PM

Got the flowmaster for my fiancée gmc Sierra! He's in love with it that's all I can say!

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Magnaflow Glass Pack Mufflers Reviews


Awsome!!!!!!!

Reviewed By Matthew D (Stafford Springs, CT) Reviewed for a 2006 GMC Sierra —8/15/2012 9:16 AM

This glasspack is awsome!!!!!!!! Sounds sick on my Sierra 5.3 .I am really impressesd. Nice tone at idle, when you get into it it really sounds sweet. doesn't have that annoying drone while cruising around. I highly recommend this glasspack.

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Magnaflow Performance Mufflers Reviews


Great Performance and Awesome Sound

Reviewed By Gary H (Springfield, MO) Reviewed for a 2006 GMC Sierra —5/2/2012 3:24 AM

The 18" Magnaflow gives my truck a nice rumble. I installed this along with the Airaid Jr. kit and can see a big difference in performance and gas mileage.

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