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      05-11-2012, 05:17 PM   #10
RenoE92M3
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Drives: melbourne red e92 m3
Join Date: Apr 2012
Location: Reno/Tahoe

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There is always fluid in the caliper your not filling it every time it only has to move a small amount of fluid. If you are really concerned about it measure the fluid volume in each caliper. How do you think aftermarket brake companies make big brake kits? For the most part they sell the same caliper with different mounting hardware and lines. It's not rocket science it's a BMW guys.