The shocks are non adjustable. They're expensive because of the agressive valving, and external reservoir.
I had 9000's in, hated them, way too soft on full stiff. I have Bilsteins in now, and I'm fairly happy with them, but they are in no way even close to the stock shocks in response.
Even though I've been through 2 sets of stock shocks out of my own pocket(no warranty because of supercharger) I may buy a 3rd set.
John C.