The reason why I want the bigger rotors are looks nice plus the braking will be better.
I've looked at calipers on a M135i which is the blue caliper. Looks exactly the same as mines.
The m3/m4 caliper looks exactly the same.
I think I will just buy some 370mm rotors to see if it fits.
Only way to find out.
I will let you guys know how it goes
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