I have used pf disks for 3-4 years and still on 1st set (the dimpled ones), they were replacement M3 OEM size, the disks are still OK, the callipers were 4 pot all round with mintex race pads. I would say I got excellent wear out of them with plenty of track time.
I have just put the APs on with new pf disks with pagid pads so I will have to see if there is any difference, yours don't look good at all for the mileage ....
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