E46Fanatics - View Single Post - Difference - swap M3 to 330i brakes/calipers
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Old 04-29-2010, 05:44 AM   #6
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Join Date: Feb 2004
Location: Oakhurst, Ca
Posts: 1,781
My Ride: 96 M3, 02 M3, 01 M5
Both brakes are 325mm in diameter. The regular M3 brakes have 28mm thickness and the 330 have 26mm of thickness. The M3 brakes would be better, marginally, for fade resistance, that's about it. More so if you went with Euro floating rotors.

The stock brakes are single piston and rather useless. It's not worth your time... maybe try to get some ZCP M3 brakes, those are nice and aggressive, but still nothing like BBK's.
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