Upgrading some things and would like some help. I am looking to do jets, air cleaner and pipes. I love the short pipes and have purchased V&H sideshots but have yet to get them on. Question #1 Can I just put the replacement K&N air filter on without doing the kit? Question #2 Do I have to rejet before putting the filter on with the pipes, and if I rejet do I need a different filter? Or should I just wait and do it all at once when I can afford it? Thanks, newbie whose husband doesn´t ride but is quite handy with a wrench.