Frankly, if you haven't purchased it already, we don't recommend CAIs (unless you do a lot of heavy towing and need to worry about cylinder head temps). Bill says that you won't see more than 4-6 hp gains -- and you'll also have a lovely drone.
You can get the same (or better) gains with the Gotts Mod; it'll cost you about $40 in parts, AND your custom tunes won't need to be rewritten!
You can do a search on here for "Gotts Mod" -- there's a wonderful thread with a write-up from JackandJanet!