Z4M Coupe mods

[baptist]

Buying a Z4M coupe soon, interested in the following.
Car needs lowering, any recommendations for springs? ride quality like with springs?

Fancy the Gruppe M intake, anyone have any experience with these?

Anywhere cheaper than Ebay for the CSL wheels?

Thanks.

[jcas]

Sixspeed is the chap to talk to - his Z4M Coupe is superb....