Quote:
Originally Posted by 9mmkungfu
Not to turn this into a debate, but I have coated Zimmerman rotors that are drilled and slotted with no adverse affects. My Porsche had drilled rotors from the factory.
It may pose a problem for a track day but they seem to hold up fine for street use.
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Zimmerman are also high quality rotors. You can get away with drilled rotors if you buy from a company that does it right, but the cheap ones dont do it right and they quickly crack. Even the high quality ones are of course more likely to crack than blanks are, but they are a lot more likely to last for a long time than cheap ones. I have no issue with buying drilled rotors, even cheap ones, as long as the buyer goes in knowing they are doing it only for looks and that they are more likely to need to be replaced early.