50 Series HD Flowmaster
Bought this muffler to give my Hemi some growl when you get on it. It is a mean muffler not too loud in the cab but when you get on it, it sounds mean! Easy to install took me only an hour and a half to remove the stock muffler and put this one on. Very simple only 3 clamps and done!
Not Quite What I Expected but Still Like It.
Had the #12588 installed with the Y-pipe upgrade on my 2009 Dodge Ram. This is my first Magnaflow muffler, and after watching numerous youtube videos I went with the 22" in fear of the drone. I was expecting to hear more of a difference when accelerating over stock, but I'm still early in the break in process. I've noticed a slight drone around 1500 rpms, it's not bad and could go away over time.
I was excited about installing this muffler and expected it to be real quiet better than the origional equipment well not so I still needed the resinators. I wish I was told I would need something to keep the drone noise out of the cabin. There are a lot of V/^ engines out there and more testing should be done to eliminate the drone noise and still have better flow.