What ARB were they using with the tein set up , this can make a big difference . tein has some of the softest spring rates around …. so im led to believe .Managed to get a test ride with a Tein coilover setup - Way too firm for my liking.
I've contacted Bilstein for previous part numbers for anything other than the B4 series of shocks they currently market for the SG. I'm not holding my breath.
@fpan Would you have uploaded the graph via PhotoBucket etc? I can't seem to find a previous post with the graph you mention in - Lots of spring rate posts though to give me somewhere to start.