You ask a lot of questions about the EP3. If you want more concise answers from people who actually own them, check out this site:
http://ephatch.com/forum/ ...unless you have already.
Do a search for the turbo info you are looking for. Some people there already have them, along with RSX-S swaps, etc.
The members rides section is sick. Check it out. That's where I have been a lot lately looking for info about the '02 Si.