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      09-18-2016, 10:49 AM   #5
cfm56d7b
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Drives: 2017 440i Gran Coupe & 2015 X5
Join Date: Nov 2012
Location: Orange County, CA

iTrader: (2)

Both Brembo and AP Racing BBK offer 6 pistons (front) and 4 pistons (rear) vs 4 pistons (front) and 2 pistons (rear) in both standard, M Sport, and M Performance brakes. Plus calipers are completely re-engineered. That's what ultimately one pays for.
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