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Personal preference more than anything. I ran mostly Zimmerman (plain) rotors on my 986 and preferred them over drilled for maximum heat sink in track use. Slotted work well and also I have drilled on the 987.2 Cay which seem fine so far. Only a few track days in the Cayman though so the next set may change.
The other difference is in rotor cast quality. German cast rotors are very uniform and tend to last much longer than the cheapie Chinese knockoffs. They do cost more but tend to wear very evenly and don't have to be changed as often. I think this is more important than rotor style.
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2009 Cayman 2.9L PDK (with a few tweaks)
PCA-GPX Chief Driving Instructor-Ret.
Last edited by Topless; 06-27-2015 at 08:32 AM.
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Lil Red
2009 Porsche Cayman 2.9L
Threaded Mode
