Algiorda, for wipers, if you have the OEM blades still on your car you can go to a VW dealer and just buy the rubber blade inserts by asking for this part number,895-955-429-A, or go to this page in the Pelican Parts website and order them Pelican Parts
here. These are the same OEM rubbers in your blades, but Porsche doesn't sell them without the blades. If your car no longer has the OEM blades I can't say that these will work for you though.