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Putting one in the intake of the air box does neither of these. The air still has to travel the filter and all the of the snorkles/ difussers. Yo umay gain some HP, but it would be from removing a restriction (the inlet).




Not necessarily true. The idea is to speed-up the airflow as it makes it's way through the intake trac. That's why you see such devices on automobile mass air sensors, way up-stream of the throttle body. The velocity stack compresses the air charge, both speeding it up and cooling air temp. Merely pulling-off the snorkel is not going to give you equivilent performance as the velo stack. That's been well proven over at the 360° camp.

/Mike