Tornado air

[ChevyHighPerformance]

Just for info:

I made a tornado air device (this device fits in your intake and swirls the air) for the H3 and lost power. I know on LS1 f-bodies and corvettes you lose power with the tornado. However, on some vehicles with long intake tubes, you gain because the increased flow from the swirl is greater than the head loss from the swirl element.