Hello folks,I was wondering if any of you can tell me what kind of jetting I will want to go with when I install Muzzy exhaust on a 1996 Ninja 250?I'm also wondering about K&N air filters.The KA-2586 is listed for the bike on some sites,but according to K&N's site it is a "universal" filter.Do they fit well?Or should I stay away from them?I'll very likely be buying the bike in the next few days.Any info will be appreciated.