Does anyone have a SuperCharger in their NSX?

I've heard of the Comptech SuperCharger for the NSX, but Its damn expensive. They claim 40-60HP gains, but I would like to know if those numbers are real or not as I could not find any Testimonials , Dyno graphs or reviews from NSX owners having a SuperCharger.

Also would adding a SuperCharger ****up the engine or harm it in any way? Im all against adding a Turbo or Nitrous, as that would screw ur engine in the long run, but i have no idea if thats the same case with a SuperCharger.