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      10-05-2012, 11:59 PM   #31
M3 Esq
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Drives: X5, M235i
Join Date: Aug 2007
Location: CT

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Stop tech actually advises (through materials located on its website) that, in terms of performance, really only a front BBK is needed as the majority of the stopping power in our cars is in the front. While not directly on point, this informs as to what is actually necessary in terms of the rear brakes. In other words, if you want to get a rear BBK, 345mm will be more than enough. If you want show, we'll that's up to you.
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2013 M3 LRPE Sold
2011 335i Sold
2013 M3 Coupe DCT RIP
2011 M3 Coupe Sold
2007 335i Sold