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GMC Performance Mufflers

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Latest Customer Reviews

Magnaflow Performance Mufflers Reviews

Very good product

Reviewed By dalton w (COAL TOWNSHIP, PA) Reviewed for a 2013 GMC Sierra —11/4/2015 5:56 AM

I installed the 14" magnaflow performance muffler on my sierra. It sounds excellent, not to loud and not to quiet. Just has that perfect tone that a truck should sound like.

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Flowmaster Super 44 Series Mufflers Reviews

Flow 44

Reviewed By Mark H (ANTHEM, AZ) Reviewed for a 2011 GMC Yukon —10/29/2015 10:11 AM

Had a magna flow on muy Denali w/ 6.2 liter . So glad I changed it out with a flowmaster super 44. Now it sounds great and seems to be getting better mileage as well.

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Flowmaster Super 10 Series Mufflers Reviews

Best $140 I ever spent

Reviewed By Bryce Z (College Place, WA) Reviewed for a 1979 GMC C/K 2500 —8/13/2015 8:32 PM

Everyone thought it be loud and obnoxious so they were trying to convince me to just settle for glasspaks.... And am I glad I didn't... This thing is MEAN and very aggressive since I got two coming out, dumped at the axle complimented with headers... I recommend these mufflers to everyone!

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