Lose your standard filter and buy a UNI filter (make sure you oil it). Your exhaust, either port and polish the inlet header until its smooth or widen the heaper pipe to 32mm. Mod you muffler by taking OUT the flange inside. It will be loud though.. lol . Lose you carbi and upgrade to 26mm Kiehen or Mikuni get bigger jets if you have too. Total cost $100 if you source the parts of ebay. You won't believe the difference in Power dudes & dudettes.