would i be wright in saying that the atmospheric releases out to the atmosphere and the recirc one blows back through the charge cooler i thought i read in fast ford that they blow back and keep the turbo spun up but from what im reading its blowing back in the oposite direction do both make the same noise my thinking of running withought was i got a less chance of having boost leake through the waste gate mine is on top of the std 2wd charge cooler