For the 993, there is only one system specified for all models. For the 996, there are three. Carrera, Carrera 4 and Turbo.

 

Wow how strange given the different weights-

 

OK, as I read back through all the posts. This is really only effecting Bilsten/HD owners that have sway bar installs too! I assume that most of the guys that do this adjustable shock package have the sway bars which makes sense if you DE. I want to make sure I'm clear on this? For those living outside of proximity of VB it would be kind of important if this is not a known or recognized problem.