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Anyone Replace Front Rotors on their 991 GT3?

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Old Dec 7, 2020 | 01:40 PM
  #46  
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Palting
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I've run through 2 sets of iron rotors on my prior 991.2 GT3. From your pics, what worries me are the size and apparent depth of those cracks. They may not connect the holes, but those cracks are worrisome. Not sure they would pass tech inspection as well. I would change them, if nothing else for security and confidence in late and threshold braking. In other words, my only worry would be that I get the braking/turning done right, and not whether the rotors will explode or not.

Last edited by Palting; Dec 7, 2020 at 01:41 PM.
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Old Dec 7, 2020 | 02:12 PM
  #47  
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ParadiseGT3
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Originally Posted by Palting
I've run through 2 sets of iron rotors on my prior 991.2 GT3. From your pics, what worries me are the size and apparent depth of those cracks. They may not connect the holes, but those cracks are worrisome. Not sure they would pass tech inspection as well. I would change them, if nothing else for security and confidence in late and threshold braking. In other words, my only worry would be that I get the braking/turning done right, and not whether the rotors will explode or not.
Good stuff, thank you.
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Old Mar 27, 2026 | 10:14 PM
  #48  
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rambo lambo
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Default Brake life left?

Hey boys following this thread got a rally in Tennessee tail of dragon then driving down south to Atlanta Motorsports Park just wanted to see your thoughts on my rotor life if I can use it for this trip / track event im looking to put 1000 miles on car mostly highway besides the tail of dragon and track day.








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