I have decided to bite the bullet and order the Comptech Supercharger through a local speed shop that will be doing the install. I pose this question to those of you who have ridden in or already installed the S/C or Mike B. What, if any additional noise does the supercharger make on the S2000?

 

You get a slight whistle from the blower unit. It's easier to hear at idle. Once you're moving, wind, tire and exhaust noise drown it out.