i dont have one, nor do i have an ef hatch. but the swap would be the same(ish) as a b16 engine swap into an ef. if you have an si its easier than the cx and theres other things that come into play too. and yes the b18c is equipped with a hydro transmission so itd be easiest if you sold that transmission and got a cable one from a first gen b16 or a 90-93 teg (not nearly as good as the b16 one tho). either way the swap isn't too difficult and if done right it should run perfect afterwards.