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01-17-2013, 07:39 PM
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#2
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Brigadier General 
Drives: // 135i //, X5
Join Date: Mar 2007
Location: Bay Area
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I believe the rears are 2 piston.
There are plenty of replacement rotors by other manufacturers.
I'm running slotted discs on my rear. It makes no difference.
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- 08 135i - Wavetrac LSD, AST 4100, Swift springs, Brembo GT brakes, M3 front sway, Meyle HD links, Dinan Camber plates, Whiteline subframe bushings, M3 rear guide and upper link, M3 front control arms, HP custom M3 front Strut brace, Megan rear control arms, F30 brake shields -
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