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      04-02-2012, 01:06 AM   #97
TimMc
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Drives: 135i SCT N54
Join Date: Aug 2008
Location: Brisbane, Australia

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Quote:
Originally Posted by BiscottiGelato View Post
I thought the M3 Competition/Z4M rotors are 2 piece floating w/ aluminum hat? Only issue I see with them are cross drilling being possiby less reliable?
Having just removed my OEM 135i BMW performance cross drilled front rotors due to pretty severe cracking across the holes, I can vouch for the lack of reliability. Car was tracked a few times, but I'd only used just over half of the original pads before I noticed the cracking. I never touch the brakes on any of the cool down laps to try and prevent this too.
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Driving - Man 135 (LeMans/Black). BMW Perf SW & SSK. Quaife LSD, KW V2s, Ground Control camber plates, M3 front Control Arms & SB, Helix IC, AR DPs, PROcede V5, ER CP, Forge DVs, BMS OCC, Setrab OC, P3 Gauge.
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