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Hummer H3 Performance Mufflers

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Latest Customer Reviews

Flowmaster Super 10 Series Mufflers Reviews


Sounds great!

Reviewed By Lee M (CORTLAND, NY) Reviewed for a 2008 Hummer H3 —11/7/2012 12:06 PM

I only have an inline 5 cylinder egine so I wanted good performance,sound and better fuel economy. Thats what I got with the super 10. It added a better sound and tone to the inline 5.

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Magnaflow Performance Mufflers Reviews


good

Reviewed By Kyle d (METAMORA, MI) —4/22/2015 8:23 PM

Good quality and performance, only thing to suggest is a better sound quality out of it. On the quiet side for sure, but other than that is a solid muffler.

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Flowmaster Street Performance Mufflers Reviews


Sounds great!!!!! 40 series

Reviewed By charles t (FOUR OAKS, NC) Reviewed for a 2014 GMC Sierra —4/15/2015 8:59 AM

Muffler sounds great when added with a k&n 77 air intake. Just remember new sierras and silverados, need to have the exhaust adaptive valve locked in full open position for full effect. Spring loaded valve damper inside pipe 6 inches after factory muffler. There to keep down sound when in v4. Does not effect performance of vehicle. Also remove the resonator. Worth the investment!!!!

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