I tried bolting up this header that came with my ZC. I figured it was a 92-95 Civic one and would work fine. Well when I tried to bolt it up its like 3'' too long on the downpipe. Does this mean maybe it really is a 88-91 Civic one or something? I'm going to just have that part cut out and welded in but I want to know why it would be like that, or what it really is?

Actually now that I think about it I tried bolting it up to my car when I had the DX engine and it was like 5'' too long. What bastard header is this.

 

Is it a header or a stock exhaust manifold? some cheap header manufacturers don't have very tight tolerances so their product varies. I bought a header off of ebay and the collector is aimed up towards the floor pan instead of being level w/ the exhaust.