Okay, had them on for a while, here is the scoop. They do dust like a MF'er, but happily, the dust rinses off easily. They perfom MUCH better, even without any heat in them. From 70 mph it is at least 2-3 car lengths, probably more, the ABS does not seem to cycle as quickly either, in a panic stop. Overall, I would give them a big thumbs up. I will give an update on them after I go to the track with them.