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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                  
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