my car has only 5800 miles on it and 4 track days....what are my options, is this something that need attention right away.

My old 993 4s had 34k miles on it dozens of track days and not the first sign of a crack.....

Is this normal on a GT3?? Is is covered under warranty?

 

Rolo this is normal.

 

Thanks Neil,,,,should I change them?

 

when they get to be about 3mm long then its getting time to change

 

John, Its normal to get the hairline cracks, its from the heat, just monitor them and when you see signs of them spreading left to right where they will connect with the holes its a good time to replace the rotors then.

 

Thanks guys.....btw got the camea mount...its in perfect shape. Thanks

 

Anytime, Enjoy it !

 

The hairline cracks are normal. However,you want to keep an eye on them.
If you have cross driller rotors, Its time to replace them when the cracks meet ( connect the holes ) and or if the crack is all the way to the out edge of the rotor.(cross drilled or standard rotor)