Its funny how these "genuine" resellers try to use evidence that is negative to convince the unwary that its good.

As DD said the HP and torque are identical, so it doesent do as it says anyways regardless of any Air/fuel benifits.

IF the A/F graph was better, then it might improve fuel economy, but the air fuel mix goes up to max much earlier.
So it must be using more fuel to achieve the same HP and torque then without the product.

Almost as useful as the electric turbo fans, or the spinning air turbulance fan things that give you 5% gain aparently.

Amusing really...