So my exhaust leak was due to my downpipe gasket. Thats all fixed. Flex is fine. Alternator is fine. This whistle is coming directly from the supercharger itself. Like near where the snout connects/midish area.

If you take the belt off it is immediatelly gone. This whistle only happens at idle or low revs, and its completely gone at any rev with the belt off.

I've been basically told that this is normal for a genV with a 3.1 pulley to make this obnoxious noise... Might end up going turbo just because I dislike this so much lol. I love the whine of superchargers but this whistle crap and low rpms/idle is gay. Just sounds like somethings wrong with the car.

My old car on a gen3 with a 3.2 pulley didnt get anything like this but this is a genV with more boost so I guess thats what it is. Oh well...