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These are Frozen Rotors used on my 944T track car (DE events). These have seen 4 DE weekends last summer at BIR in MN and at Road America. Hairline cracks showing all around, so I'm wondering if these are on their way out. Any advice? They aren't pulsing (yet). Thanks!
Keep an eye on the cracks, when it gets the to edge of the rotor then it will start to pulse and quickly worsen. These still have some life left in them but how much longer really depends on your driving and the pads being used. Road America can be pretty rough on brakes and heat. I suggest Hawk DTC60 pads on the front, DTC70 in the rear if you dont have a bias valve.