Guys, this is STS Turbo territory:
http://www.ststurbo.com/
They've invested a lot of money in this technology and hold several patents on it:
http://www.ststurbo.com/patent
Patents are here if you're interested:
http://www.google.com/patents?id=bWU...J&dq=6,745,568
http://www.google.com/patents?id=bW5...J&dq=7,134,282
It's a good way to keep the engine bay clean. That's their whole rationale for designing this system.
If you're going to design your own system make sure you understand the extent of their patent coverage and don't infringe. STS is very aggressive with their patent enforcement.