I recently picked up a noise under the hood that sounds like for lack of better terms the air box being opened and closed for a split second. I have noticed that the hot side turbo hose at turbo is dry rotted and cracked pretty bad. My question is how do these turbos work in relation to the hot side air flow? In other words is the air flow through the hot side continuously or does something regulate when the air flows from turbo to inter cooler? The noise I have been hearing is not constant but is more noticeable when towing 5K or so. I am trying to narrow it down and curious if this boot is what I am hearing leaking.