AntiStock

Has anyone tried this product on their cars? I have seen dyno results showing like 30hp increases, but haven't seen any real world testimonials on whether or not it is worth the investment. I like the CO2 system over the NO2 setup because it'd be cheaper to fill the tank, and it basically does the same thing (in this application, anyway). So has anyone tried or had any experience with this product?

http://rallynuts.com/motorspor...6.asp