I think that Koni is only allowed to rebuild Konis. I spoke to Koni Service in Ohio today. It is $250 per shock to rebuild and they will re-valve based on your spring rate and use. They will put them on a dyno and give you the curve. This is why I like Koni, Bilstein, and Ohlin, etc. They are serious and will help you dial in for the track. The lower priced street / track coilovers on the market (and there are a ton of them) are all sort of the same and unknown underneath. I do not know any serious racers that do not eventually end up with higher end shocks (that is not me by the way - I am an amateur). Pfreen says his are probably still good, so I may not have to do anything right now.
