Si sport coupe rear diff

[Antonyt94]

Hi all,

Probably a daft question,

Just wondering if all coupe's have the same rear diff? Or do the Si Sport versions have a different one? If so does anyone know the ratio for the Si Sport.

Tah

 

[1536Z4]

Just wondering if all coupe's have the same rear diff? Or do the Si Sport versions have a different one? If so does anyone know the ratio for the Si Sport.

As far as I know all Si is as below. M cars different diff as limited .

Manual = 1: 3.46 part number 33107564160

Auto = 1:3.64 part number 33107575044