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      06-04-2020, 05:12 PM   #92
hC1001
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Drives: E36 M3, F80 M3
Join Date: Nov 2019
Location: Brooklyn, NY

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They cant be aluminum. They have 10.9 hardening stamped on them.

The extra weight from the CBC is negligible. Why would extra weight cause the engine to think there is engine knocking? Knock is from unexpected air/fuel combustion...
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