It could be that you over torqued your strut bearing top net ?
When I did my B12 kit, I didn't tighten the strut bearing (22 or 21mm)nut enough and it caused all sort of knocking noises on my first test drive. I did my install myself too. A few zaps with my cordless impact gun, fixed my issue.
There is also a paper gasket that goes between the strut bearing and the body of the car. This gasket is important bc it allows you to swing the strut in and out when adjusting camber from side to side.
B12 Bilsteins and Eibach springs. (I know you have a different setup).
Dinan camber plates and the 21mm(?) nut.
