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      03-09-2015, 07:52 PM   #13
Eins Suchtig
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Drives: 2011 SGM 128i MSport
Join Date: Jan 2011
Location: Puerto Rico

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Quote:
Originally Posted by Southjersey128 View Post
I remember reading that the piston inside the caliper was larger than the stock 128, but don't really remember if I had checked. It's been a while now.
The rear pistons of the BMWP brake kit for the 128i are 1.650" dia.

Stock rear pistons are 1.570" dia.