I put new drilled and slotted rotors on all four, on my 03 Accord Sedan EX. When coming off an exit ramp, or such, and braking to the traffic light, I get this hum in direct relation to the wheel speed. Ya think it's the new D&S rotors, or maybe I need to tighten up the spring clips? Not too loud, but bothersome. Maybe these rotors are supposed to make noise like this?

Thanks,
LVP in Cincinnati

 

Doesn't bother me (cause I can't hear it from here...)

Ever have drilled & slotted rotors before? My first thought is the normal sound that these features make as the brake pads press on the (non-smooth) surface of the rotor.

 

It's the slots! you can lightly dremmel sand the leading edges with a very fine grinder if it bothers you enough.