I'm about to get some new mufflers and was looking at the Dynamax Ultra Flows does anyone know how they compair to the flowmaster 40's? I'm about sick and tired of my 50's and want something louder but in the straight through design to go with my X-pipe. Does anyone know how much louder the ultra flows are than the 40's or the 50's? Also does anyone know anything about the MAC Pro dumps compaired to the other two? Thanks for the help.
Monty
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2000 Mustang GT