Quote:
Originally Posted by bmrm396
the m performance brake discs are actually considerable larger as well. m sport brakes do not equal m performance brakes.
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For EU/ROW-spec cars the factory M-sport brakes have same size discs all round (370x30 & 345x25) as the M-performance brakes, only difference is the lack of slots & holes.
For US-spec they're smaller for the 328i.