I don't know if jeff understood you but if you just want to lower your idle on the KA you have to turn a screw located near the intake manifold. Now don't go turning every screw you find after reading this because there might be more to it than just turning a screw. By the way, the hot pipe is from the turbo to the intercooler, because the air is still hot. The cold pipe is from the intercooler to the throttlebody, because the air is then cooled from the intercooler.
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-Juan
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