Hi there,
  the new ignition system seem O.T.T. to me for normal use. If you are planning major engine/exhaust mods it might be worth it IMHO.... 
 try checking with either Chris Kelly at 
http://www.ca-cycleworks.com or our very own SHAZZAM here in the DSC, both seem very, very knowledgeable about these things. 
 Regards - Frank 
 [Edited on 12-12-2003 by Iconic944ss] 
 [Edited on 12-12-2003 by Iconic944ss]