i got mine from ecs a haha before they went out of stock. the install is super easy and takes about 20-25mins. if you need a reference us this:
http://www.1addicts.com/forums/showthread.php?t=716583
dack gives you a really fucking awesome DIY and its super straightforward. just look it over a couple times and then go install haha.
cheers
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09 LMB M3
Retired: 05 MB 330i, 08 CS 135i, 17 EB M240i, 13 CB 135is, 16 ABM M4