Thank you, guys. I've bought the blue M performance calipers (370/380mm) and looking for 380 mm rotors. Will I need also another breaking cylinder?
In order to keep the rear e-break I'm going to stay with the OEM Z4 rear breaks. However, I'm a bit worried about breaking in bends. The front will be much stronger so the ratio between front and rear may not be the best one..
Last edited by shwaara; 08-15-2016 at 01:08 PM..
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