I used to have really bad squeaks coming from my rotors; so i changed all four rotors and brake pads. I did the break tests for the rotors and i still get a squeak from my back driver side rotor. Everytime my wheel makes a revolution it squeaks, but not all the time.

 

Im having the exact same problem right now, the faster i drive the louder the squeek, and its really really getting annoying. Does this mean i need my brake pads and rotors replaced? is there any other solution? I have the stock brembo's so i dont know how expensive this may get. AAARRRGHHH God i hate the squeek