This is a quick video of what a common boost leak sounds like on a GR WRX (2008-2014). The hose between the intercooler and throttle body was loose on the throttle body, and the rubber piece that goes around the hose was inside out. The rubber piece was vibrating like when you blow on a blade of grass between your thumbs. Ignore my dialogue, I made the video to send to a friend, and later decided to publish it.

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