Well I'm a firm beliver if OEM is good that aftermarket is usually poor compared to. . In the auto repair end cannot even begin to erxplaim how many sets of aftermarket squealing,brake dust, rotor eating pads/shoes we took off and threw in the trash and intalled factory linings. Have had days were the ROAD ATLANTA stock class racers have come in and bought EVERY factory Nissan 300 and 240 pads we had in stock. Asked one once WHY?He replied that every aftermarket he had every tried wore out in one race(same as factory)but did not damage the rotors(with aftermarket had to replace rotors EVERY race also)and stopped as good or better then the aftermarket. I have found this held true on Nissan,G. M. and Chrysler vehicles for the most part.