Update: I got the Hipermax R installed and they are perfectly fine with the comfort (default) settings.
The Z feels much better now. Much more stable in corners and the bouncing is dampened quickly.
My RZ34 Z-NISMO bounces with every road imperfection at highway speed. In case you're wondering, the factory transport-stubs have been removed. That is why I am considering replacing the suspension.
I'm leaning towards the HKS Hypermax-R, which is why your comment about being too stiff...
These would replace the factory Z-NISMO setup, so that's why I am considering them over the S-series.
What is the stiffness of the factory Z-NISMO setup? I don't want to get the Hypermax-S and be a downgrade.
Thanks! Yes, it's very light. The shop owner couldn't believe the difference.
The finished product looks much better than what appears in the NISMO JDM catalog. It has a bit of a precious metal look. Great finish and light reflection.