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      11-25-2012, 11:50 PM   #1
awhk
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M Performance brake discs upgrade for 328i M Sport

Ask my 328i M Sport (with M Sport brakes) is arriving soon and I am thinking of upgrading the discs to the M Performance discs (bigger and perforated) front and rear. I was asking a parts shop here in Hong Kong and they said it's not possible due to the bigger disc size. In order to fit M Performance brakes, I need M Performance calipers (Orange, red or yellow ones) . Anyone can confirm this?

Thanks in advance.
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      11-26-2012, 12:00 PM   #2
Jackson743
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I believe you do need new calipers for the larger discs.
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      11-26-2012, 10:03 PM   #3
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That sucks!!! Maybe I should wait for aftermarket discs then.
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      11-26-2012, 11:49 PM   #4
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No u don't. HK-spec M-sport comes with 2NH as standard. 2NH discs are straight swap with M-performance discs.
In any case, if u swap them the only gain u'll get is better looks - u'll have no performance gain at all as the sizes are the same. Also those discs are not really drilled, only slotted & dimpled.
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      11-27-2012, 02:04 AM   #5
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Oh, thanks for your confirmation Clearance! 2-3 weeks wait for me left!!!!
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      11-27-2012, 03:10 AM   #6
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Quote:
Originally Posted by clarence View Post
No u don't. HK-spec M-sport comes with 2NH as standard. 2NH discs are straight swap with M-performance discs.
In any case, if u swap them the only gain u'll get is better looks - u'll have no performance gain at all as the sizes are the same. Also those discs are not really drilled, only slotted & dimpled.
can the 370x30 (Part number: 34106797603) be fitted with the standard M-sport caliper? or 345x24 (Part Number: 34206797600)?
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      11-27-2012, 04:00 PM   #7
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Quote:
Originally Posted by mister_k View Post
can the 370x30 (Part number: 34106797603) be fitted with the standard M-sport caliper? or 345x24 (Part Number: 34206797600)?
U mean standard M-sport caliper being the standard calipers for 2NH? If so then 370 should be the front & 345 the rear. In the ETK it should say alternative part for 2NH.

Last edited by clarence; 11-27-2012 at 04:07 PM.
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      11-28-2012, 11:22 AM   #8
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OK, thanks clarence!
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