And yes, my plans do involve a turbo in the future. I'm doing it ground^ though, so next I need sway bars, suspension, RA tranny, F&R LSD, then swap internals for lower compression and strength, port the head, new head gaskets, then turbo kit...But if anyone has anything worthwhile for sale, let me know. I leave 1/1 for SLC, Utah so show your cards. Thanks everyone.
Peace 
no one makes headers for the 2.2 except borla.... its a single port outlet... do not but a cai on it... you wont be happy...the stock airbox is plenty for the 2.2, obviously tom had been hitting the pipe tonight
Dont waste your time turbo'ing a 2.2L its
junk! Like Beat (now deadrex) said, the heads have 1 port outlet, goodluck getting enough flow outta them to spool a turbo. i read your post and advise you to not port those aweful heads.
Even if you swap heads for 2.5 SOHC heads, you still have horrible cams and a shitty bottom end. I know you said you were going to eventually put internals in the 2.2L but your still stuck with an open deck block and related shortcommings.
For the amount of money you plan on spending buying lower compression pistons, performing head work, new head gaskets, and random miscelanous parts strengthing the 2.2L your getting very close to to price of a STi shortblock. STi shortblock is much stronger by design as it is a factory turbo block.
Not trying to talk you out of getting some more performance just giving you some info to make wise decisions.
If you are budget minded, look into a full wrx swap<engine, tranny,ecu,wiring>. you can find those really cheap and dont have to worry about internals<as much> as long as you tune it.