Alex(AUS) wrote:Also, what is the diameter of the Injen/UPFD pipe?
2.75"
Also about the metal/plastic thing, I dont know about how well they insulate, but metal parts always feel more extreme than plastic parts because they transfer heat much faster when you touch them. What you feel is the transfer of heat of the hot metal part from it to you, not the actual temp of the part (In contrast. when a metal part has been sitting out, if you touch it, it feels much colder than the plastic because it sucks in the heat from your hand much faster, but in actuality, since both the plastic and metal have been sitting out there for a while, they should be the same actual temp.)

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