any motor can be supercharged, but for a roots style s/c it needs to be designed to fit your engine. Jackson Racing makes superchargers for civics but im not sure for which models/years...
If you already have a header (you only have 1) and intake then a turbo setup will put those mods in the for sale section, since a turbo setup requires a different "header" and intake. If JR does make a supercharger kit for your car then you can keep both of those mods since they will "fit" with the supercharger. Im not even going to get into which is better between the two since there are TONS of threads like that already, and they get ugly fast
