will a 98 2200 header fit on a 97 2.2l?

It may. It may not. Chances are the header has larger ports then your head, and will make up for the difference of location of the ports on the head. The only way to tell is try it. Maybe you can get a gasket for a 97 and try it on the 98 header? Maybe someone can do this for you on here. I have an obx header for the 95-97 2.2, i think it can fit on both the 2.2 and the 2200, although im not sure.