Quote:
Originally Posted by Chuck33079
They pull hot air in from the engine compartment.
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I can't speak to the K&N setup but the OP was talking Stillen Gen 2.
STILLEN Generation 2 Long Tube Dual Intake Kit With Dry Filter 402851DF | STILLEN
These have cold air boxes and are specifically called cold air intakes. Shouldn't be worse than stock.
That said, I don't have the gen 2 but was thinking of going that route since I am not really interested in yanking my bumper every time I want to work with the filters.