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unclehardrock 07-16-2006, 08:39 PM has anyone installed a vortex funnel in their air intake? anyone know if these things really increase your gas mileage or is it just a hoax? i see tons of them on ebay and am curious if they actually work or not. thanks. -john dfwxterra 07-17-2006, 05:20 PM They're a sham. IIRC, Popular Mechanics did a write-up on them, showing no gain, and in some cases, a loss. midnight runner 07-17-2006, 09:41 PM I dont know if there is a way to find it online or not. But, Dateline just had a thing on that tornado thing for cars and how the are a hoax last Friday night 7/14/06... unclehardrock 07-18-2006, 12:46 AM thanks for the infor guys...i had a feeling they were pretty much good for nothing -john | ||