Supercharger

Ok, I have decided on the Z-engineering s/c. Now what I find hard to believe that it is strictly bolt on. Wondering if this is true or would I have to modify other aspects of my car. Such as fuel/ignition? Would I have to get bigger injectors, fuel pump, pressure regulator. What kind of spark plugs/wires are you guys running.
Just trying to get as much info as possible, don't want to be on the side of the road with a blown engine.
Thanks