I had a quick question I was helping someone could anwser for me. I have a 88 CRX Si with the original d16 in it and I am planning on real soon either throwing a DOHC ZC in it or a D15b vtec in and I was wondering if the headers of my original car would fit on either or those or if I would have to buy some new headers. If someone could please help I would appreciate it. Thanks.