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Originally Posted by samdemange  hi,if u want to put M3 front calipers,u must change the King pin,because they are different with the non M ( caliper fixation is 8 mm larger) and put a spacer for ur rims or install 17 rims for the rear if u put M3 breaks,u couldnt use ur handbrake,and must do a adapter,its better to put Z3M or Z4 break with 135i rotor, |
Samdemange, why its better the z3m or z4 disc brake? dont need adapter the handbrake? the size is the same of M3(312x20) part number the same of z3m#34212227177