well its illegal to do that in cali. But if you dont care about that, you can swap it with a h22 head and gain about 50whp/50tq. The head line up pretty well, but youll need to honda bond a few things. IF you do a search on google for "H22 head on f22 bottum" you'll find a 40 thread post about people that are doing it. And one person posted a parts list somewhere in there so you know what to get.