Sorry about the crappy vid. I just made it real quick trying to catch it, the whining sound is very low. If I drive it up to boost, it'll sound fine up until around 4k rpms, then it does a crazy loud whine sound. I don't like making the car do this, but I might do it tomorrow and record it on my phone. If you can hear it, what would be causing it? I'm not too worried about it because my new turbo finally arrived today. I should be able to get it installed this weekend. I'm just worried that it's not my turbo that is causing the sound and something else that I need to replace. note: Please no comments on my video is crap. I know it's crap. I wasn't trying to make an amazing, professional video. My car started to make the sound so I figured I could try and catch it real quick on my phone.