I have a 98 HX so there are not any headers made for my model because it has 2 oxygen sensors at the top of the manifold instead of the bottom. I was thinking that I might be able to buy a header that would still fit the block and modify it so that it has the necessary holes for it to work with my engine. Is it really this simple, what model would have the same block size, and what are all of the modifications that I would need to make??? Much thanks!!