Forced Performance "Green" turbo. Hugely popular with the DSM's, STi's started using them. Kind of an ultimate street turbo IMO. Here you go:
http://linux.forcedperformance.net/m...egory_Code=WRX
If you get it, I'd seriously consider paying you for a ride. And I agree with that upgrade path btw.
If you knew all that and were asking something totally unrelated, myyyy bad.