Check this out : http://www.fitchfuelcatalyst.com/ Now I'm not one to get suckered in by the electric supercharger, or the 20 dollar power chip, but I was reading the lasest issue of Four Wheeler magazine and they had a section on how to get better fuel mileage. This was on of the products they listed and tested. They reported a 1.2 MPG increase. I went to the web site and there is a section of reviews from other magazines that all report a significant increase in MPG, along with an emmissions reduction, no preignition, and overall smoother engine opertaion. But then I'm thinkin well if this is SOOOOO great why haven't I heard about it before and why don't new vehicles come so equiped? Anyone ever try this thing out?