Test fitted the 968 CS rear shocks and springs. They will clear the body by far, glad I'll be able to use them, they are too nice not to. Porsche uses these with the 25.5mm torsion bars, so will I.
Parts List. Please note that the top bolts are just a few mm too short to be used with the cup brace bushings in my case. I will either shorten the bushings somewhat or use longer bolts. The lower bolts are for use with Porsche alloy trailing arms.