the reason these so called "E-boosting" systems don't work is that a typical 12 volt electrical system just can't support the current draw. Once cars start using 24, or 48 volt architecture (in the distant future), e-boosters will have a chance.

I could see maybe on a very small engine with very limited airflow capabilities this thing might produce a little bit of power, but for a very small burst, you can forget about any sustained power gains over a few seconds.