I searched for "icebox" and "comptech ice box" but I don't undertstand how it works, if anyone could take the time to point out how it works, they would be much help, thanks.

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Do any of you use this, it doesn't seem to be very popular when I searched.

 

It's a short ram intake with a box around it. Attached to the bottom of the box is a tube that goes down to where the airbox resonator was, and it sucks in cool air. Click here to get an idea of how it's installed.