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GMC C/K 3500 Performance Mufflers

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Latest Customer Reviews

Flowmaster 50 Series Delta Flow Mufflers Reviews


From 40s to 50s

Reviewed By THOMAS C (GARLAND, TX) Reviewed for a 1985 GMC C/K 3500 —4/4/2013 8:22 PM

One of the best purchases I have made. I went from the 40 series to the 50 series. I am not saying there is anything wrong with the 40 series, as a matter of fact I put a set of them on my 1985 GMC k3500 454 27 years ago. I just changed them out a week ago to the 50 series. Yes the 40s were on their last days, but I would say I got my monies worth. What other muffler that you know of will last 27 years. Needless to say they were a little too loud for me at this point. The 50s fit the bill for me

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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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Flowmaster 40 Series Delta Flow Mufflers Reviews


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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