I just recently traded in my '09 Heritage for a pre-owned '13 Ultra Limited. The Ultra was a rental so it was as stock as stock can be. First thing I did was put Rhinehart slip-ons, stage 1 breather with V&H Fuelpak. As a result I got very little noticeable increase in exhaust note and equally as little increase in performance. I didn't realize that this bike has the cats in the headers slowing everything down from the jugs. Now I'm shopping headers. Looking at V&H dresser duals or Rush true dual head pipes. Thoughts??? (aside from the obvious "you dummy". Took care of that on my own ) Thanks in advance!