Hey everyone, I've been reading a lot of posts on this site about the D15b vtec engine, some good helpful information so far but I had a question...First, the engine only comes with the top half of the header, will a header off of a Y8 or a Z6 work? If so, what about the o2 sensor, I understand its a one wire on the d15b but 4 wire on US engines...if I were to swap another D series header on, (using my stock CX harness) what to do about the o2? get a 4 wire and wire that in? use the stock one from my b8? kinda confused on that. thanks if anyone can help!