Alright, I got a great deal on a used set of MazdaSpeed coilovers for my FC. The thing is that they don't have the threaded ride height adjustability. Just notches in the side wall of the shock itself. I'm a little stumped as to how exactly I'm supposed to adjust the height on these. Any help on this subject would be greatly appreciated.

 

Are you sure they're coilovers? I've only heard of aftermarket Mazdaspeed struts which I believe are just rebadged KYB's with more adjustment.