[Alvine90]

Has anyone with the 330i tried using the e89 z4 28i front rotors on their car?
Based on this video, it seems like they use the rotors with the aluminum tophats (similar to the 335i to z4 rotor upgrade)

If these bolt right up to the 330i, it may be a good brake upgrade considering that they should be lighter than the stock rotors. The price difference isn't too bad either.
http://www.turnermotorsport.com/p-15...116794427.aspx

Realoem show the same rotor sizes
e89 z4 28i: 34116794427 330x24
e90 330i: 34116854999 330x24

[banshee28]

Interesting, I think I heard that they do fit, and since I also have a 330i, I am also trying to find out if they fit for sure, as I would consider using them if they did fit and were a good upgrade. Hopefully someone here knows for sure.