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GMC C/K 2500 Performance Mufflers

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Latest Customer Reviews

Flowmaster 50 Series Big Block Mufflers Reviews


Installed on 2003 GMC 2500HD 6.0

Reviewed By Jonathan V (Saint Paul, MN) Reviewed for a 2003 GMC C/K 2500 —3/2/2011 6:43 AM

I installed this muffler on my truck. The only other engine mods I have on is a Spectre CAI. I highly advise getting it welded, as the clamps just couldn't secure the muffler properly. The shop charged me $150 to weld it- a ripoff, but it's worth it. Flowmaster says that the GM 6.0 is the hardest motor to quiet down, so I advise getting this muffler. According to Flowmaster, this is the biggest, quietest muffler they produce. The sound is great. Very powerful, not too loud, either. There is a noticeable drone at around 2000 rpm, but I got used to it fast. It sounds great on the inside, and even better on the outside. I did certainly feel a power boost all across the rpm band, but no improvement in mpg's. And as usual, AutoAnything was terrific.

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FlowTech Red Hots Mufflers Reviews


my red hots

Reviewed By thomas w (oxford, GA) Reviewed for a 1937 Chevy Business Coupe —5/19/2016 4:24 AM

building a rat rod and these muffler were just what I was looking for they were priced in my budget . They sound great and look cool. Thanks T.W.M SR

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Flowmaster Super 40 Series Mufflers Reviews


My ram rumbles

Reviewed By Donald B (Smithtown, NY) Reviewed for a 2011 Dodge Ram —5/4/2016 8:21 PM

I put this on my 2011 Ram 1500 and it put a throatier sound but not too much louder than stock. It is not that noticible in the cabin which is nice. I cannot tell you how much of a difference i felt as far as power due to other mods i installed but i love the sound of my truck now.

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