i ordered mine from gt performance in france , comes with the green filter ... postage is a little much , but the have it in stock ...
https://www.ebay.de/itm/202326464423?hash=item2f1b98d7a7:g:~x0AAOSwX5ZbDr6k
In cup i think its drilled through , and a longer bolt with nut , there 27nm are ok
thats #3 in the diagramm of the workshop manual ? #15 are the 3 bolts that hold
the steel part in which #3 clamp the bottom ball joint , or not?