Question Regarding ZCP spring/perch vs non ZCP

[autoxnyc]

I have a e92 M3 with non EDC suspension and would like to lower it slightly. I want to stick to OEM parts and also don't want to mess with handling and reduce compression travel.

I have performed some search on this forum and there's no definitive answer as to how exact the ZCP cars were lowered. I have seen mixed comments about the lower perches being thinner on the ZCP cars but there were also people stating they are the same.

Does anyone one know for sure if the perches are different?

TIA

- Daniel