I'm noticing that when i start my '04 WRX in the cold, it will start to, for lack of a betetr term, produce a "whine" thats akin to a supercharger whine, simpyl while at idle. I'm thinking it may be the turbo; how fast is it going at idle? I'm also noticing my vacuum is getting much more pronounced (usually its at .5-.75bar at idle; now its 1.0-1.5 bar at idle). Anyone else know whats going on here????