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GMC Sierra Performance Mufflers

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Latest Customer Reviews

Flowmaster 70 Series Big Block II Mufflers Reviews


Flow master 70 series

Reviewed By Jeffrey S (Warsaw, MO) Reviewed for a 2008 GMC Sierra —11/10/2016 3:22 AM

I purchased this muffler to replace a smaller flowmaster muffler that was too loud for my application. This has the performance of the flowmaster technology without all the noise.

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Flowmaster Super 44 Series Mufflers Reviews


What Did You Say?!

Reviewed By Joseph N (CLINTON, ME) Reviewed for a 2011 GMC Sierra —9/21/2016 8:13 PM

My ears are bleeding.... I love it. For real though, it's a little louder in the cab than I wanted, but I'm glad I didn't go with the Super 10. Good price, gotta love AutoAnything. Had it welded, only way you should do it really, and appearance I could care less about because no one is going to be looker underneath my truck.

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Flowmaster 50 Series HD Mufflers Reviews


Flowmaster 50 Series HD Review

Reviewed By Donny S (Laceys Spring, AL) Reviewed for a 2002 GMC Sierra —4/6/2016 6:09 AM

Awesome experience again shopping with AutoAnything. Love the muffler, sound is just right!

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