Piston size chart M3 E46 / Z4 M

Car	Piston size front	Piston size rear	Main pistion front	Main piston rear	Disc front	Disc rear	Pad area front	Pad area rear	Caliper difference F/R

M3E46	60mm 5655 mm^2	42mm or 46mm 3324 mm^2	25,4mm	20,64mm (22,2mm)	325x28	328x20
M3E46CSL	60mm 5655 mm^2	46mm 3324 mm^2	25,4mm	22,2mm	345x28	328x20
Z4M	60mm 5655 mm^2	46mm 3324 mm^2	25,4mm	22,2mm	345x28	328x20			1,7
M3E36	59,9mm	39,9mm	25,4mm	20,64mm	315x28
BoxsterS	2x40mm 2x36mm 4779 mm^2	2x30mm 2x28mm 2644 mm^2			318x28	298x24	254cm^2	196cm^2	1,8
Boxster	2x40mm 2x36mm 4779 mm^2	2x30mm 2x28mm 2644 mm^2			298x24	299x20	216cm^2	196cm^2
AP-Racing 5000R