Part Number Needed for Cayman Rear Sway Bar that fits 986

[Danimal]

I'm thinking about swapping my rear sway bar for a cayman one. There is a chart floating around that shows the relative stiffness of different sway bars and the cayman one looks like a decent upgrade.

Is there a part number for the cayman sway bar they are referencing? Is there a difference between the base cayman and "s" cayman?

Thanks!