Tell me what you are looking for, since I WORK FOR BILSTEIN I can talk to some friends and get it figured out. Joel Ward of the old RTR (random thoughts racing) works for Bilstein also. He used to race a B13 and told me he did a throw together at one point. I can do some digging with info. I can tell you, Bilstein inserts are the ****, much better than koni! They will valve to whatever spec you want. ALso, they said that if we had enough people, we could do a GB on their threaded housing with 36mm strut rod and they have a company that would do custom mount brackets and top mounts.
Brent
Brent