Quote:
Originally Posted by myE70
Funny thing is that the rotor used in this project is with aluminum hat and it cost FAR LESS than the stock 135 or 335 rotor check the prices for yourself.
NOW here is the part number for the rotor 34216775287 it is of a brand new 2013 5 series BMW.
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Hi
Please correct me if I am wrong:
The 5 series rotor is the same size as 135i rear rotor.
It will fit the 135i rear caliper unmodified.
To fit 335i rear without modification to heatshield/backing plate you had it machined to reduce its diameter.
Machining is not unnecessary if you have a 135i or you don't care for the backing plate/heat shield.