alright here goes.

Today after school i got in my car like usual. Then i went to drive home. After everything was at operating temp (it does it when its cold too) and i got into the boost range my turbo (pretty sure its my turbo) made a really strange whistleing. I know its not healty. I've heard good turbos and it used to make that whine. Now it sounds like a person whistling. Kinda similer to a cop siren. Unless your in london.

any ideas?

thanks
adam