E92 Aerokit
"The regular aero package part number is 51-19-0-417-557.
If you have adaptive cruise control or option #541, the part number is 51-19-0-417-588.
If you have PDC or option #507, the part number is 51-19-0-417-587.
If you have both adaptive cruise control #541 and PDC #507, the part number is 51-19-0-417-589.
These are all non-painted or primed packages and you will also need some adhesive (betalink) 82-69-9-408-866.
It looks like the rear spoiler is separate and the part number is 51-71-0-414-373 and you also need the same adhesive."
Credit jusdtm!!
Reference:
http://www.e90post.com/forums/showthread.php?t=33901
edit: you can order the front piece individually. P/N: 51-11-0-414-371 unpainted.