I have the same set up as Mark, VMod SE slip on's, 28T, air cleaner, but i do not have the RT yet (in on the group buy) Im currently running topless but havnent done any map re-flash to compensate for topless. I do have the flash for the SE pipes. Should I not ride my bike this way? I went topless last fall but due to the winter i really havent ridden it all that much topless. Its supposed to be in the upper 40's this weekend and im going riding (finally!!) Any suggestions??