Hi y'all. I can't be bothered to read the Hiclone website, but just to let you all know it creates extra cyclone in the intake.
As the air goes through the intake it then goes straight through the valves and into the combustion chamber. Most diesel engines have neat shaped piston crowns to make the air swirl, the swirl gives a much better and more even flame when the diesel is injected in. The Hiclone is a sort of cylindrical fin thing that makes the air swirl around much more before it gets to the valves, then in theory when the air hits the crown of the piston and swirls, it is already swirling so the swirl effect is increased, in theory giving a smoother and even more even explosion.
I have not heard anything negative about them, but I personally don't think they are worth the money.
But, either way, it is nothing to do with filtration.
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