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TRELO
05-07-2011, 05:42 AM
Can a swap be done? Calipers and rotors?

Nivo
05-07-2011, 07:24 AM
TRELO, stock 12.8" rotors not working for you?

Marcus-SanDiego
05-07-2011, 07:31 AM
How big are the M3 rotors?

TRELO
05-07-2011, 08:05 AM
I have a set of M calipers sitting at the shop. I want my calipers to say M!!!! haha... I love to mod thats all

Marcus-SanDiego
05-07-2011, 08:11 AM
I have a set of M calipers sitting at the shop. I want my calipers to say M!!!! haha... I love to mod thats all

Nothing wrong with that. Believe me, I know what you mean. The ZHP is the only car I've really left alone. All the rest of my cars were modded and then modded some more.

danewilson77
05-07-2011, 09:24 AM
330i is 325mm x 25mm

http://www.realoem.com/bmw/showparts.do?model=EV53&mospid=47725&btnr=34_0758&hg=34&fg=07

///M3 is 325mm x 28mm

http://www.realoem.com/bmw/showparts.do?model=BL93&mospid=47714&btnr=34_0758&hg=34&fg=07

So....diameter is the same....thickness is 3mm thicker on the ///M3 brakes.

bullfrogs_M3
05-07-2011, 12:53 PM
So here's the skinny on M3 brakes and non-M3 cars. I did a significant amount of research on this because I really really wanted to run some M3 calipers (all because of that sexy ///M logo on the calipers :( )

M3 calipers won't fit the front of non-m3 unless you get new carriers and drill/punch new holes in them. The rears won't fit at all due to the M3's rear end being so different from non-m3's.

So basically you can run the fronts but your running on modded carriers and really risking it. This right here is why I finally said I won't do it and just went with a set of brake your self rotors on stock caliper/carriers.

mimalmo
05-07-2011, 01:40 PM
In order to get the rears to work, you will need a complete rearend from an M3. Since the overall diameter and thickness is so close to ours, you would be better off doing a BBK upgrade.