do a search on h-t. there are a few guys running itb's on the street. some made their own and some have pre-fabbed kits.

pros:
increased throttle response
broader power band
sound (this can be a con as well depending on how loud you like things )

cons:
price
tuning is a bitch if you dont know anyone to tune them

for a stock b16 i wouldnt bother. once you start getting into the internals and getting the engine to breath in and out better, then you can look at itb's as an option.