Filter
We had the Power Core filters tested for a few medium and heavy equipment applications.
High restriction, decent efficiency and a restriction climb that was near vertical as it got dirty. Not a very good design.
Any unit that does not draw underhood air. It must draw clean/temp stable air to get the best performance. Units that draw underhood air will lower performance in city traffic until underhood heat is at ambient temp.
Not at all the case. We measured intake temps during a variety of driving methods. The speed of the air moving through the tube makes it almost impossible to transfer heat, especially during performance driving. Get a cheap anemometer and you'll see how fast intake air actually moves. I had aluminum intake tubes and applied over 250 degrees of constant heat to the exterior with virtually no change in intake air temps. The plastic tube intake air temps were virtually identical to the aluminum.
AFE allows dirt in during street use. Not recommended for Off-Road. Try one and look at the throttle body.