Originally Posted by aajami
Neither. My USDM M3 came with stock EDC shocks, which I upgraded to USDM ZCP EDC shocks. I had EDC before the retrofit, and I retained it after the retrofit.
MY08+ JDM shocks (EDC) are the same shocks as MY10 M3 Edition shocks, and MY11+ ZCP shocks. MY08+ JDM M3s also come with non-EDC shocks, and I believe those are the same shocks now being used on the 1M.
Regarding signals between the EDC control module and the struts themselves, your best bet would be to PM rldzhao and technic, our forum's suspension and electronics gurus, respectively.
100% clear; You certainly sound like a M shock variety guru to me!