Here's dj's DIY:
http://986forum.com/forums/showthread.php?t=9418&highlight=intake
I'm sure there must be an easier way, but here's one way:
http://986forum.com/forums/showthread.php?t=8725&highlight=intake+install
And here's some other useful info:
http://986forum.com/forums/showthread.php?t=10968&highlight=intake+install
Maybe dj can chime in to help out?? I'm interested to see what he will say as well. I was actually looking at this info when I saw your post. I'm looking into doing this as well and trying to gauge how the diy would be.