Intercooler is a must on this car so you are definitely heading in the right direction. If you decide to step it up further and get downpipes, I'm sure you'll be pretty happy with its performance in conjunction with the appropriate Cobb map.
Check out what I did with a few bolt on mods and pump gas here while still on the Cobb OTS maps:
http://www.1addicts.com/forums/showthread.php?t=644020