Same pads I put on all four corners of my Crossfire with a mere 2500 miles on the clock. Now, with just over 15,000 miles they're still quiet as a mouse and so low on dust that I rarely even wipe them down. I can remember a track day weekend before installing these and even my rear wheels were black at the end of the weekend. At a subsequent track day with these on I managed to scare the daylights out of a Porsche 911 when I outbraked him from 125mph down to 35mph for a hard left hander.