Yeah, you should have asked us before paying money for it. I have 2 version in the garage collecting dust, couldn't get either one to work. I'm pretty sure that just routing a tube on each end to the engine bay will NOT work, I've tried that. I believe it only works when there is strong air pressure from the intake pushing on the drum, so you need to drill into your airbox. Easier than drilling into a custom supercharger intake, which I decided not to even try
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