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I got told the 2 tubes from the air box (hot and cold) work the heating. Is this true? Would this mean fitting a K+N i'd only beable to get either hot or cold?
I was under the impression that the water that cools the engine passes through the heater matrix, heating up the air from outside as it passes over it and through into the car.
I think the two pipes which become defunk when using the k&n are just for aiding the engine when started from cold.... I think.... it may be something to do with recirculating air. Or something like that. lol.
the second pipe that comes from over the top of the exhaust is only to aid the engine warming up !
but if the valve that decides to let in cold air or hot gets stuck on hot ur4 in trouble lol
well u loose power