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Discussion Starter · #1 ·
I have just about convinced myself that I want to switch to either cross drilled or slotted rotors to improve the braking and brake longevity on my brick. However, I have read several posts (here and on other similar boards) that drilling or slotting eliminates the heat treating protection, and that the only option to consider is slotted/drilled rotors that have been heat treated afterwards. Now the question is-who markets such a rotor? I called Powerslot today, and they told me that they do not post-heat treat their Volvo rotors, just plate them with cadmium. Do any other vendors or manufacturers sell slotted or drilled rotors that have been heat treated after the modification?
 
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