I did a search, and I didn't find anything, so here's my question. The F23A? motor came in 6th Gen. Accords. It also came in the early 2.3 Acura CL's. So, are the headers from the F23 swappable with the F22 header?

 

are we talking about the f22a, or f22b? i'm assuming from your name, its the f22b, which in that case, it might, but with the 4th gen no, because the f22b header doesn't even fit on the f22a.