1. Looks like the destination breather from the PCV valves. Goes onto hard lines attached to intercooler.
2. I can't tell what you are pointing at, either hte cruise control cable or some hose that looks like it's going to the solenoid in front of the intake.
3.Looks like there ued to be a nipple there for the boost solenoid blow off. I'd check the intake path to ensure it doesn't get sucked up by the turbo!
4. Also attaches to the hard breather lines attached to the intercooler.
5. alternator plug.
6. can't tell.
7. looks like the knock sensor plug.
8. a/c compressor plug. If JDM is different you'll have to use the WRX compressor.