Just got a 04 stage 1

Hey my buddy just got a 04 srt4 stage one and I have a few questions. I'm going to be the one working on the car so I need some info on it. I am no stranger to turbo cars and have a turbo dsm, but I've never fooled with anything like an srt4 before. My questions:

-The car has hard intercooler pipes. I'm pretty sure they are aftermarket but I was just wondering if they were factory or not.
-The BOV sounds sweet, and I looked to try to find it but I don't know where it is. On dsms it is on top of the UICP and vents back into the intake before the turbo and MAS airflow sensor. So where is the BOV on these cars?
-How is airflow metered on the engines? Is it by a MAS airflow sensor? A MAP sensor? A combination of both or what?
-Is the BOV recirculated?
-The car alreay has a turbo xs MBC. We are running right at 15psi at WOT. What would be a good boost setting on an otherwise stock car?
-What would be good first mods? I think we already got an intake and MBC, possibly an aftermarket BOV. I say next mod will be a catback. What are other first mods and who makes a nice catback for this car.

Thanks for any help in advance. I'm excited about this car and I'm ready to make it ball.

get a turbo back exhaust and a wastegate 17psi dropping to 15, and you will feel hell of a difference....and some tires:banghead:

Uh, can anyone answer my questions?