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GMC Envoy Performance Mufflers

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Latest Customer Reviews

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Just what I expected !!!!

Reviewed By john b (potomac, IL) Reviewed for a 2005 GMC Envoy —3/31/2016 11:37 AM

It brings the 5.3 alive sound wise and gas mileage has improved alittle bit

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Service Truck Exhaust

Reviewed By scott c (HOUSTON, TX) Reviewed for a 2006 GMC Sierra —4/14/2015 8:41 AM

Gibson quality, good welds, can tell its well made. A little louder than I thought it would be but works well

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Pontiac G8 V6

Reviewed By Joshua M (TOLEDO, OH) Reviewed for a 2009 Pontiac G8 —9/21/2017 7:39 PM

Installed these on my Pontiac G8. The exterior sound is a nice rumble. not too loud, not too quiet.The interior noise "drone" is rather noticable but not too terrible and has a little vibration to it. Again, not terrible. Nothing a little sound dampener cant fix.

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