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      10-31-2008, 02:06 PM   #95
Evolution Racewerks
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Drives: E90 N54 | F30 N20 | F10 N55
Join Date: Feb 2008
Location: Baldwin Park, CA

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That's assuming that the pistons aren't steel in our 135i. We don't know that yet as nobody has found out whether they're steel or aluminum.

Quote:
Originally Posted by cuizhuoyi01 View Post
evos' owner never had problem with caliper piston.maybe because the piston is steel.