I started hearing a whistling noise coming from my 2004 WRX today. It happens in all gears and in neutral.
Its audible from the drivers seat at from around 1500 rpm (so not the turbo? I hope) and increases and decreases with acceleration / revs.
Any ideas? My first thought is a leak from the exhaust system somewhere near the front (uppipe?).
https://www.youtube.com/watch?v=zGc2...ature=youtu.be
Thanks.