OEM bumpstops or aftermarket?

Can anyone shed some light on what bump stops I may need? I have looked everywhere but can’t seem to find the answer.

Changing from OEM bilstein to bilstein b12 kit (b8 shocks). The shocks + springs are shorter in length so does it need shorter bump stops?

I have found a doc from Eibach which I have attached, is the 60-43 and 50-37 a range of diameters allowed or do the stops taper?

Screenshot 2024-04-17 192906

Also found a set online that say they are for lowered cars:

If anyone has any knowledge about this that would be greatly appreciated. Done a lot of research online but still a bit unsure.