The rotors are by Cquence. I just want to be clear that I don't think that this is a materials or manufacturing related issue, ALL drilled rotors that use the swiss cheese drill pattern will ultimately crack out regardless of brand. This is why most track guys run solid or slotted disks. Utlimately, I blame myself because I really should have changed them out 1 or 2 track days earlier. Lesson learned.
They drove fine in this condition - I was actually really surprised to see that the crack was this extensive.
Yes, I am running the large GT-3 cooling ducts.
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1999 996 C2 - sold - bought back - sold for more
1997 Spec Boxster BSR #254
1979 911 SC
POC Licensed DE/TT Instructor
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