jackson racings intercooler?
 

http://www.jacksonracing.com/pages/partshonda.html
(scroll and its about 3/4 of the way to the right...looks like a little motor actually...)

does this thing just spray a mist of water?? Where does it spray it? On the SC?

That is the water injection system. It sprays a fine mist of water into your your manifold, which will allow you to run more boost at a safer level.