Was able to get a videos of the sound from idle.. This one you can hear throughout the video from under the car.
This one starts at ~37 seconds in.
are these similar to what you are hearing? Mine are at idle and can hear better from the side/under the car rather than the front.
I am thinking about checking my downpipes this weekend for a loose connection on the v bands. if they're all snug I am going to take them off and inspect them for any oil residue.
What actions have you done already?