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      12-09-2012, 02:58 PM   #5
Dackelone
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Drives: N54 e82
Join Date: Feb 2010
Location: Bayern, Germany

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Quote:
Originally Posted by rushbmw View Post
Yea I took a magnet to the hat and it didn't stick. On the rotors it did but on the hat it didn't
+1. I just check my rotors today, the rotor hats are indeed alloy(alu) while the rotors and brake calipers(harmonic weights) are made from metal.