et16 is a pretty excessive offset for a s2 to be honest dude. esc cos rims at et25 is pretty much as far as id want to go, et16 is a 9mm more so

depending on the actual size of the rims, id say this is going to end up very euro look, so handling wont be high on the agenda

id say stick to between et30 and et40, thats a safe bet