I know and I sold them because I didn't know I was going to be lucky enough to find both road magnets and hypercos and I didn't wanna waste a good pair of Konis in some GR2s and eaibach pro-kits.
Regarding the OEM bumpstops:
OEM boots I have are the integrated ones both front and rear. The boot and the bumpstop are 1 piece and the only way out is to cut them from the boot. I did measure them and they are 2 1/4 inch tall and they are the rubber material not the foamy ones.
I did leave them "as-is" for now in both cars.
Both Front and rear look like this: