i have drilled and slotted rotors from r1 concepts on ebay with ceramic pads. I have had them for a year now, no funny noises, no problems, and the best thing no warping like oems seem to do within the first year. IMO the people that say drilled and slotted rotors are bad are the same ones that constantly bash cai's cause they cause hydrolock in 1/4" of rain.
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