I know most kits have some kind of fuel and ignition managment in order to be safe and reliable. I wouldn't be able to justify swapping out the f23 with a h22. If u were to turbo that h22 then its another story but I don't think its that great of an improvement especcially when ur engine is a year old. If u had an old as car sure swap an engine since its crap anyways but here ur engine can still take a beating.