I recently replaced both brake rotors (and pads) on my Cabrio... I upgraded to slotted and drilled rotors after overheating (and blueing) the old ones. The instructions said that the pattern is directional but either way they will work. I initially mounted as directed, installed new (OEM) pads, then test drove. Whirring sound appeared immediately. Kind of like a baseball card in bicycle spokes, faster you go the more noise appears. It was a suggestion by the folks at StopTech (rotor MFG) to flip the pattern and expect the whirring to dissipate after a few hundred miles. 5,000 mile later the noise is still there to the amusement of the neighbors and other pedestrians! The brakes work tip-top otherwise. Has anyone else had this experience? Any suggestions?
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