Subscribed.
It's really hard to find any information about this; also, it's unclear if any of the spring rates are (or should be) different given we carry around an extra ~400lb compared with the e82.
Everyone I've spoken to has just said it'll bolt straight in - everything for the E82 works in the E88 (except aftermarket roof racks
)
I'll tell you in 12 months when I'll have dropped M3 control arms, Dinan strut mounts, dinan camber plates, and a Bilstein B12 Pro Kit under my little vert. (edit ... or not, there's always the possibility I'll learn a very expensive lesson, like I did with the CSF radiator (which doesn't fit in a RHD E88 135i, despite claims that it would).)