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Old 22nd March 2009, 11:18   #1
shamus_mcd
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Brake disc (Rotors) question
After having a look through the M-registry I noticed the USA vs the Europe M5's have different front discs?

European has floating discs to get rid of heat quicker thus less chance of warpping and USA cars have 1 piece no floating.

My question is why?

Does the USA cars discs warp easier if not why the difference?
Next question would USA discs fit European cars and visaversa?
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Old 22nd March 2009, 15:31   #2
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Search will pull up a lot on this. Yes euro rotors fit US-spec cars so i assume reverse is true. Lots of US guys go to euro rotors as an upgrade. Euro rotors are even cheaper I think and are available from a number of sources.
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Old 22nd March 2009, 16:51   #3
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I've had both the US and Euro disks on the my M5 and haven't seen any noticeable performance differences on the street.

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