I got the MagnaFlow resonator from Stazi and it took the sound up a few notches for me but no rasp. A slight rumble at idle and lower and louder than stock up to 2500 RPM. Crusing on the highway is just slightly louder than stock SVT. I like it.
Andy
2000 Black CSVTMagnaFlow resonator, SHO/K&N cold air intake