rpm stuff, contact forum member "drew san" if you fancy any of these (or a 2nd hand Beet system)
jap4performance.co.uk can supply MHP or Beet stuff
mhp
![Image](http://jap4performance.co.uk/images/2208/R6-06-system.jpg)
beet titanium (my bike)
but you're looking at basically, a grand.
micron (my bike again, lol)
http://www.delkevic.com/ for err .. delkevic stuff
delkevic system on err, another of my bikes
or try ebay