Did you break them in? That's mandatory when you replace rotors. 30 stops from 30mph, with 30 seconds cooling time inbetween stops. It's called "bedding." The stops "embed" pad material into the pores of the rotor. It also heats up the pads and bakes out any manufacturing solvents. Makes a huge difference.
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I'm a retired ASE Master/L-1 Technician. I still keep current with the latest automotive technology. My blog now has over 400 in-depth repair articles, TSB's and wiring diagrams: Rick's Cool Website for DIY Auto Repair Advice | 
