i dont know if the noise was there before and i just didn't notice it, but coming home today i put my foot down and as soon as the boost was coming on i could hear this fairly high pitch whistly noise coming from the left side of the car (RHD, noise heard from left ear), the noise also stays for a second after letting off the throttle but is triggered when accelerating, i know these cars suffer from turbo issues but i am hoping its just a normal sound i didn't hear before, any ideas?
