some clubrsx ppl have done turbocharge in their rsx-s, do a bit search there u would see.

here's one:
fresh turbocharged, scroll down

i m not a FI person, so my opinion would be biased, it's cheaper and produce lots hp, basically almost any car can do it, the trick is that you fine tune it, so there will be no problem later on. the Suprercharge on RSX-S looks very promising as well, if u look for straight line acceleration on street, or drag strip i think turbo will do u better, but u also need to get some good tires to grip that powre. i personally would prefer Supercharge, cus the linear power output, and that i can use on road course, i might do it later on, NA is just too expensive.