Thought you guys might be interested in the Koni street catalog. The catalog has cool stuff like diagrams and information about the WRX inserts, as well as the rest of the line. Interestingly, it says the WRX inserts are rebuildable. It also says they have services available like custom valving and conversion to double-adjustable. I've already enquired about what services like that cost. I'll let you know when I get the answer.