I was looking at mufflers for my car at Advance Auto (where I work) when one of my associates tells me that I can have the Flow Pro mufflers he had on his truck at one time. I figured that since they were free that I would take a chance and see what one sounded like. The flow design resembles a super turbo dynomax muffler but the constructon of the out side looks like a dynomax ultra-flo muffler. It seems to be decent quality. 2 1/2 inlet/outlet, off-set inlet, center outlet. I then figured out the piping angles needed to simple replace my old muffler with the new one, welded up a new bracket to the muffler and started her up. It sounded pretty good at idle, but when I reved it up it sounded a bit raspy. Almost like a few of the hondas in my town. It sounded good, but after instaling a chrome resonator tip, it sounded much better.
Smooth and low toned. Not loud enough to attract cops, but loud enough to sound cool, especially when you consider that I paid more for the resonator tip than the whole rest of the project :P