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I have oftern wonderd how much $$ those guys are taking people for.
That may push 500 cfm but it will not push any cfm under a backpressure situation, no boost. May as well have a house fan sitting in front of teheair filter.
"It FORCES COLD AIR inside your engine with a Great Supercharged effect." Now not only does it provide the supercharge "effect" it has also solved the problem of air heating up when compressed. Or maybe it doesn't compress any air and there for cools it. I should by one and throw it on my truck and see what happens. it should be good for 30 hp