I did get the milage improvements I stated and it could not have been due to anything other than the Tornado fuel saver, since I installed it on unmodified 2003 Chevy 4.3 Liter V6. I checked my gas milage many different times prior to installing the Tornado Fuel Saver any many times since and I still see the improved milage. I was getting 15-16 MPG before and now I am getting 19-20 MPG after. The benefits that you see may be different depending on the your specific application. I am just telling you what I found from my experience with the TFS and I am not selling them or even care if you wish to purchase one or not.
