Dazed and Confused...hmmm LED ZEPPLIN Rock and Roll with a dash of rumble from "baffle-less SE slipons? Should be a nice combination, but would be better with a properly fitted set of baffles in there...if you left the air cleaner, the EFI system along, you should be fine (the bike will be running a bit leaner, but should compensate for that single change. If you do change the aircleaner, it is recommended you either get the HD download to richen it a bit back to normal or consider getting an EFI fueler like TFI to access the untapped horsepower that the free flowing aircleaner and muffler adds, completing full Stage I mod which is ideal.