I've had this issue for a couple months now. It used to only occur when going through turns at higher speeds. Now it happens pretty much anytime I'm driving, whether I'm taking a turn or going in a straight line. It does not occur at idle, or when I stop. If I turn sharp left it appears to go away. It sounds like aluminum scraping against another metal. I made a video its hard to here over my engine in the video and sounds quite faint, but in person its loud and annoying. We have looked over drive train/axles/etc and made sure all was tight. Has anyone heard this noise before and knows what it might be? Any help would be much appreciated.

 

Found the cause. Got my car up on the lift over the weekend. Turns out the drive shaft is trying to tear a hole in my resonator. Fix was to loosen bolts on mid pipe and use a crow bar to push it over then tighten the bolts back up. I also replaced the rubber hangers that held it closer to the underside of the car and away from the drive shaft.