I had a caliper stick on the right front rotor and it ground the brake pad (BTW, the inside pads do NOT have squealies on them) and trashed the back side of the rotor. New ones are great but I'm not sure that much better than stock but they were cheaper so it worked out. Still need to go head to head with a stocker and see but I don't expect a substantial improvement. Changing to braided lines this weekend.