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2007 GMC Sierra Performance Mufflers

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Latest Customer Reviews

Flowmaster 50 Series Delta Flow Mufflers Reviews

Great Muffler

Reviewed By Jeffrey H (LUVERNE, AL) Reviewed for a 2007 GMC Sierra —12/30/2012 6:18 AM

Sounds great. Nice rumble at idle and not too loud while driving. Will definitely keep buying auto anything and flowmaster products

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Flowmaster 70 Series Big Block II Mufflers Reviews

nice sound

Reviewed By brandon h (Gowrie, IA) Reviewed for a 2007 GMC Sierra —8/28/2010 10:48 AM

Sounds good on 07 sierra. Not too loud just enough to know its not stock.

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Magnaflow Performance Mufflers Reviews

Exactly what I was looking for!

Reviewed By Jeremy S (SOUTHAVEN, MS) Reviewed for a 2015 GMC Sierra —3/5/2018 8:28 PM

The newer GM trucks have a lot going on with the exhaust, keeping them quiet as can be. I wanted to be able to hear the v8 without it being obnoxious, loud or having a drone at highway speeds. The 22" Magnaflow muffler is perfect, gives a nice deep tone and you can't really tell it's on there until you step on it. Very pleased with the purchase!

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