On my 2004 v6 mustang I have dual flowmaster exhaust. However, it is still lacking in how it sounds. Below 2000 rpm it sounds fine, quiet but fine, once you reach 2500 rpm's or higher it looses that good rumble. Is there anything you can recommend I do to improve how my v6 sounds? As a side note I am considering removing my catallitic converters and running straight pipes into the flowmaster mufflers, any thoughts on this idea?