I am pretty new to the wrx game and i wanted to know what i should do first to upgrade my car. I am looking to run mid 12's and what a turbo that doesnt have alot of lag and one that has good spool up. But before that what should i upgrade (ex. injectors,intercooler,electronics,etc)
Since your goal is 12 second 1/4 miles increasing your Torque and HP are most important. As opposed to handling (suspension, tires).
I'd do it in this order:
2) Turboback or downpipe + catback
3) Larger intercooler
4) upgraded turbocharger
5) Larger injectors
6) Engine management (Ecutek, UTEC, AccessECU) You need this to take full advantage of all these upgrades. And you must have it for the turbo and injectors. You'll still get nice gain from the uppipe/turboback without this though.