Heres a link to the kits
http://www.techniquetuning.com/e36obd2turbo.htm
I've heard a lot of good things about this set up and the company. Sounds like a great starting point for those looking to turbo their cars. The only thing i would be concerned about is the CR and keeping it down so you can stay away from detonation. Maybe grab a good head gasket to be safe. Anyways thought i throw this one out there as an alternative for some of you to ponder over and get some ideas..they have a great ecu reflash in stead of the "black box" which know one knows what it does...and you can always upgrade and add parts to this kit and they will help you with tuning . Heres a link where they talk about their tuning philosophy.
http://www.techniquetuning.com/obd2fi.htm
AND ITS ONLY $6,800
............................................DO BBK BEFORE TURBO!!!