....The KoniFSD's aren't adjustable at all - They automatically adjust themselves hydraulically. I believe that they are stock on some of the 'supercars' from McLaren and Mercedes.
http://www.tirerack.com/suspension/suspension.jsp?make=Koni&model=FSD+Damper+Set
OK, thanks. Can't quite get my head around how they selectively alter the damper rates though. And is it just rebound, or compression and rebound damping which adjusts?
KONI FSD: Frequency Selective Damping
A revolutionary new technique whereby the benefits of both types of ride are combined in one perfect shock absorber.
As advanced as FSD is in operation, the basic principle behind it is astoundingly simple. No electronics or sensors are used. The FSD technology id based purely on hydraulics.
Put simply, FSD actively controls the damping level on the basis of the movement frequency of both the car's body as well as suspension. It responds even more responsively than electronic systems do.