vexedrex

Hi guys, wonder if anyone out there will have some clues to help me resolve this issue.
my car is stock 09 wrx and just recently been hearing this annoying whistling noise when turbo spoiling up, sounds like a leak, I’ve checked hoses that I can see and re checked bolts and all are tight. I put my iPhone near where the blow off valve is and recorded the sound, any advice would be greatly appreciated Link below
https://drive.google.com/file/d/1T7Q...w?usp=drivesdk