Yep, I removed the rear resonator and muffler. The only thing holding back are the cats. It has a nice tone to it at speeds less than 60mph. A small bit of "cackle" occurs when heavy on the throttle. At 75mph, the droning noise was horrid... so loud that my handsfree device would not work with my cellphone. Surprisingly, when I installed my huge weatherguard toolbox and another small trunk box behind that, it dampened the sound considerably... a bed mat would make it even better I'm sure.
I'll probably add some type of performance muffler soon. The racket is starting to become annoying.