Continuing for Brett:
I did the same thing, except I kept the stock intake arm. $10 of PVC piping from Home Depot in parts and a little ingenuity, which is free...or not.
Here's the pic of what we did. The opening is where the old filter would be for a regular AEM CAI.

I ran some PVC piping from the hole on the bottom of the airbox. You'd also need a couple L-shaped ones.