WHat options are there to replace/refurbish the front camber plate? The Porsche parts manual shows the plate, rubber and grommet as one part, but I suppose the rubber can be replaced separately?

Reason for this question is the Automotion/Performance Products catalog, page 28 Weltmeister "Camber plate retro fit kit". It explains that the camber plates are not included, meaning that you can separate the rubber/grommet from the camber plate...?

Or is the option just to buy a new camber plate from Porsche?
(no (carrera?) updates with stiffer rubbers?).

Tom