300bhp/ton is right about this set-up not really being a true Cold Air Intake system.
For it to be a true cold air intake system, you need to box around the filter and run piping from the filter box to a spot where it will draw in cooler outside air instead of drawing in the air from the engine compartment.
For example: It is common to see a cold air intake system set up on a mustang where they have a filter such as the one you linked with a metal box around it. Then coming out of the box is a tube that runs down to where the fog light is on the lower part of the bumper. They remove the fog light and air is draw into the tube through the fog light hole and into the filter box, bringing in cooler outside air.
On a rover when you add a snorkle you are actually pretty much setting up a basic cold air intake system.
Now the other part of this is the size of the tubing you use. The bigger the more cold air you can draw in.
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John Conklin
LRO Moderator
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