Just installed this baby and on the first go around the block, sounded like the bike wanted to jump out of its skin in a good way. I didn't expect it, as the bike already had HD Stage 1 air cleaner on it. Pipes seemed louder and the idle became a hundred rpms or so higher to put me from 950-1000 to roughly 1100-1150. I did get one 'crack' sound in the carburetor area when I pulled the throttle back getting into the garage. Would a small negative adjustment to the carburetor idle adjuster be all I'd need to get her 'perfect'? I'm assuming that the carb was tuned/jetted when the first Stage 1 kit was put on it, so didn't think I needed to do anything with a Stage 2. Am going to tweak tomorrow, but didn't know if anyone had any additional thoughts. Bachelor weekend is coming up without the kids and wife, so its just me and the bike for a change.