In researching for rear shocks for the rally car, I see several mentions of "rally-valved" Bilsteins.
Bilstein only lists two shocks, the OE replacement and HD. How does one go about getting them rally valved? Do I just call Bilstein or are there other shops around that can do this?
From what I gather rally valved mainly means getting a bit more travel.
Or is it even an issue for rears?

You contact the competition department and send your shocks in to have the valving changed. The rally valving changes the compression and rebound damping and should not have any effect on travel.