Seller notes

This is a new old stock(NOS) MK II water vapor injection system made by APO and sold in the 1970's to improve gas mileage, reduce carbon monoxide emissions and raise octane rating. In addition, the water vapor steam cleans the combustion chamber and reduces carbon build up.The unit was tested by Road Test magazine in October of 1972(article attached) and they verified some of the claims. This unit would be a great addition to an older car or truck to improve gas mileage and performance....

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