Most of the coil overs I have found so far are only for the non ARX model. ie, they are a lower ride height. I would like to keep the ride height and get better handleing which I am told is possible. The problem with the Bilsteins is that they are only made for the Jap market and what I am trying to find out is if the valving is set by Japan or Germany. If Jap, they are likely to be very stiff, if German they should be a lot better.