Got it backwards......Using an ECM to monitor engine parameters and control all engine functions is 21st Century technology.....oiling the reusable substrate of a automobile air filter media to trap particulates is 1953 technology!
Times change, people don't......and unlike the self proclaimed "open minded"....... the gray haired crowd educated at the "school of hard knocks" knows well that: "there's a sucker born every minute and two to take him" is as true today as it was when our ancestors pounded animals with a club. Largely, knowledge comes only with age and experience not by believing everything that is written or said. There are written articles and studies indicating that magnets on gas lines give better mileage and that you can power an ICE with water instead of a combustible liquid or gas.
After over 30 years experience doing first article and final inspections of multimillion dollar contracts , reviewing clinical studies for non existent test subjects, taking proven false depositions, providing expert witness testimony in court to the contrary, and independent researching of written "facts", etc. I believe nothing of what is said until verified, and nothing of what is documented unless tested by an Internationally recognized third party who had been certified by a recognized authority. Would you trust your life to an electrical cord or device certified by UL, CSA, etc.and bearing their hologram sticker or one certified by its manufacturer in an article that they wrote or referenced that it won't flame your curtains. Every hear of recalls.......wouldn't happen unless the product was defective as advertized, i.e. did not perform as promoted, tested and released for sale? And the majority of recalls are restricted to dangerous or life threatening products, not for economic deceptions. Thus the expression, "Let the buyer beware"
And, I guess historically I am relatively close minded.........The CEO of a large firm once accused me of calling him a liar ....... "No, I'm simply saying I don't believe you, for now...."After I conduct my investigation and document the results, I'll let you and the DA know for sure!".
I awakened to that decades ago when I investigated rusty, unusable surgical instruments marked and supposedly tested and verified as stainless steel coming out of sterilizers in combat hospitals in Viet Nam. They were supposedly reusable and had manufacturer's test results to "prove" it.
You want to purchase or use some brand CAI.....go ahead, get it....who cares anyway?.....say it works for you?..... great, heard that before!...but it would take much more than what I've seen or read to convince my gray headed, closed mind that it really works. Fin.