Have yall had any experience with the Magnaflow mufflers. At the moment i have 2 Chamber Flowmasters, and and drone and tone is just way too loud. I am definately changing out the mufflers, but it is just a toss up between Magnaflow or Spin Tech. The perfect muffler would be one that has a nice tone at low RPM, but howls at higher RPM. I would like to know yalls preferences and opinions. Thanks.