I have 20 sets on my car and Shell pay me to drive the car....
Looks like the same principal as an Ecoflow, and they are supposed to ok.
If it really worked I'm sure they'd have been fitted at the factory.
A) No underpinning theory as to how it prevents carbon deposits.
B) Fuel molecules do not "clump", they're hydrocarbon chains.
C) 50% reduction in fuel consumption? Really?
Also used the trick of putting 'turbo' at the beggining of the product name thus fooling the general public into thinking that this is indeed a high performance modification! Genius!
In fact, it's almost as awesome as the power resistor of justice! http://www.fmft.net/archives/001577.html
(Originally posted on ebay 1p listings day)