You bought a WRX, dont put some cheap universal chip on your nice car. Only bad things will happen with that. Its not even that inexpensive either. Save up a couple hundred extra bucks and get a used AccessPort.
Ok thanks guys, yeh thats kinda what i figured but i actually found it through one of the links on this website i figured id ask...The other question i had was where to find an accessport and also how the Dastek piggyback is?