Hi All,
I joined not having a CSL. I have 2002 "regular" M3, 2005 ZCP (Interlagos/Cinnamon, SMG2, Slicktop), and recently purchased 2005 "regular" M3 that I want to convert as close to OEM CSL as possible.
Already had a great read here:
http://www.cslregister.com/forum/showthread.php?t=13554
and convinced myself to purchase this airbox for both of my 2005 M3's