In the red corner weighing in at mega we have Nismo. They have obviously dropped a fair amount of coin in to the research, development and production of this product and, given their track record i see no reason to doubt their claims.
In the blue corner We Have Nismoid. He hasnt spent a plug nickel on testing the validity of the makers claim as to the performance benefits of the product. Matter of fact I doubt he has even seen one.
Now who do I believe. HMMMMMM!