vexedrex

Hi guys, car runs perfect and is stock with gfb blow off valve. Car is a 09 stock wrx

Over the past week I get this really anoying whistling sound under boost, if I keep my foot to the floor the sound doesn’t get louder if anything it gets quiter. To me it sounds like an air leak somewhere. I checked around the car and pipes, all fittings seemed tight that I could see. I turned bov to recirc and same issue.

here is a clip of the noise, it’s loud as I strapped my phone inside the engine bay, it’s no where near that loud outside while driving, any help would greatly be appreciated.

https://drive.google.com/file/d/1T7Q...w?usp=drivesdk

MrRtm

Has to be a leak somewhere, split in a pipe/leaking gasket/loose bolts, sounds like a few hours checking every bolt and pipe to me, by the sound of that I'd say its so small it's going to be difficult to find as well