I have had 5 rocket 111's in various states of modification. I found the pod filters deliver better throttle response, HP, and the intake noise is better as well. Go the pods.
Yes they do with the rite tune I'm using custom headers with staintunes and the three k&N filters along with a power comander v and I'm getting 150hp 156 ft lbs torque - at rear wheel
Yes.. the pods add about 10 to both HP and torque numbers. I run Jardines and the drop-in K&N and dyno at 140HPleast and 142the lbs/ft.. I may go the pod route at some point, but my bike runs great so I havent messed with it yet