I didn't know Eibach made that kit too... you already have the kit? It didn't come with directions? That's odd of them...Ummm some one can correct me if I'm wrong but from what I understand it is the upper link and you replace the bolt on the car side not the wheel side (I think you can only do that one though) if you tke your wheel off & compare the bolts they should be the same. It helps the top part rotate on a cam for adjustment.
You should be able to compare & tell which one- good luck come back if you need more or if I'm wrong.
I am trying to get mine installed too. The tech in my shop said the Eibach camber bolts look too short.
Is there a write up anywhere online? Eibach included instructions but we're not understanding them properly.
If noone knows, I'll phone the 1-800 tech line on Tuesday..