The L20 bored to 2.4 is legal, in theroy or by law it isnt but no one will know this, as it is a L20 block and head, so no way a cop would no if the pull you over. not even a enginerr would know as they dont care whats done internally and they would never bother taking it apart and checking. so would could go the 2.4L.

what do you want?? if your looking for a NA motor to pull over 100rwkw then a Lseries could pretty easily i know of a couple of local NA A15s here with that many kw's but there has been serious cash thrown at them to get 100kw + at the wheels.