Hey Iceman, if you decided to do the heavy breather make sure you get the right kit from HD. You can now purchase the Heavy Breather with short filter for bikes with lowers. If you already have heavy breather the only way to get the filter is from HD. I researched it till I was blue in the face, apparenlly the short filter is from a German edition of the Ford Fiesta or something, not made for importation to the U.S.A.. Filter cost around 90 bucks including tax and that does not included filter sock (YES, I broke down and paid for it.
This just some FYI for everyone.