everything ive ever seen about these so called intake pipe electronic fans/superchargers is a load of bollocks in most cases.
the link claims it will increase manifold pressure by 2psi which is nothing.
they are hoping you are a mug and will misread it thinking you are generating 2psi of positive boost.
NA engines run in vacuum, ie the vacuum created as the piston goes down is what draws air into the engine from atmosphere.
on a proper turbo or supercharged car when you are talking about creating 2psi of boost, you are in reality going from probably -12psi or so upto 2psi so in reality creating 14psi.
That is why even "low boost" conversions on the puma creating 6psi or similar you are still putting a considerable strain on the engine compared to NA running and why you need to sort out fuelling issues properly.
if something in the tuning industry sounds too good to be true, in 99.999% of cases it is.