Well now I am stumped. Just got this email from ECS. They confirmed the Koni shocks are for the Z4M? Dafuq?
"Hi,
Thanks for the inquiry. Yes, these Koni shocks do fit the Z4 M. If you would like to order them you can click on this link which will set you up in the first step of the ordering process. If there is anything else I can do for you please feel free to ask.
http://www.ecstuning.com/Cart/?add1=...esrep=DColeman
Best,
... "