Maybe I am slow on the uptake here , or just plane stupid... but I see no advantages at all to having a hydroxy generator close to the engine other than adsorbing a great deal of heat from it..... and the way I understand it ,that is the last thing you would want...
if that unit is indeed a Hydroxy gas(browns gas) generator that puts out a super tiny amount
of hydroxy gas and does it through the vacuum if the engine, then I would have to conclude that it is a farce, because it is too little of Hydroxy gas to do any good !
HOWEVER... if it is drawing air through the device it is more than likely getting the increase in gas millage because of a "Vacuum leak" more than anything else...and Yes a vacuum leak can give you a large increase in MPG some times , depending on where the vacuum leak is!
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but without knowing what it is, its really imposable to say and you then have to take them at their word..... isn't that the whole theory behind "Snake oil salesman" tactics ?
give them an IDEA tell them its possible only with your product because no one else can do it
and sell them for a bunch of money and quickly move to the next town !
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so the question then remains is it possible to get better Gas millage on Hydroxy gas just by having the cell itself closer to the delivery point....for some weird reason ?
... I not only think the claim is absurd, but plane silly... but the Tiny Randy cell or a small Dry cell is a heck of allot better Hydroxy generator, than what their claiming to put out.... so if some one fills up to it, put a Small dry cell within 6" of the intake and tell us if you get a 30% increase ! or a Randy cell in a short pipe next to the delivery point
and try it ....
to expect improvements from such a small amount of Hydroxy gas is silly ...and just putting it close to the delivery point isn't going to change the VOLUME of the gas or its Quality.
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its the same gas in one end of the hose as it is at the other even if its 30ft long !
only possible thing would be cooling it down... and re condensing any moisture, shrinking its volume.....
so using that Logic I could put my 2LPM Randy cell mount it 2" from the intake and get the equivalent of 8LPM....... UH ? whats wrong with this picture!!!!!?

??
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Sorry guys but the more I see of that little thing the more it sends up red flags
... fer---get---it !
its not worth the brain-power ...HAHAHAHHAHA
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Bob......