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      08-29-2018, 07:05 PM   #12
kthor703
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Drives: 2021 M2 Competition
Join Date: Nov 2017
Location: SE Michigan

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Just wanted to add a data point. Most of the OEM replacement options are 1-2 lbs heavier than the factory BMW rotors, since most are 1 piece cast. The factory ones have a welded hat I believe. Not significant, but something to keep in mind.
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