b16a exhaust manifold for b18c???

I have the same post on another section but I need an answer fast. please respond!!

I tried a quick seach with no results, I need to know asap as I am close to buying an fmax kit for my jdm b18c made for a civic si. Please let me know what kind of mods I would have to make to make the kit fit well if any. Thanks in advanced!!
Leo