You can hear it at 6 seconds in. Passenger side. It does it when it feels like it. Not over all bumps and sometimes in a straight line. It makes the sound in rotation too. Sounds like metal slapping metal alot and im scared to even drive it. I can't pin point what it is. I have slotted rotors too the only think I thought of was a bad caliper? idk its driving me mad! 1 pot hole while i was doing about 20mph destroyed my right side of my car pretty much. It broke my motor mount, it broke my rear suspension, and destroyed my axle and probably my front strut. Worst week of my life.