Can someone give me a bit of info on which tool (inner Torx) to use when I unscrew the shock absorber / spring on the front suspension on my 8P

The socket/holder (which is mounted on the shock) that holds the anti rollbar has a bolt (18mm) and then this Torx on the other side - what is it called, it has 12 "arms"?

Also if anyone can provide me with the pdf file that shows the whole operation from A - Z

I would really appreciate any help, because I'm rather stuck at the moment and the car is on 4 stands right now...

Gewinde installed in the back though, only front job is uncomplete.