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      03-07-2019, 11:42 AM   #590
HydroStream6
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Drives: F15 X5 50i M-Sport
Join Date: Aug 2016
Location: Upstate New York

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Quote:
Originally Posted by Maverik259 View Post
Curious why you would think this? This thread is pretty thorough as to what is needed. Recommend starting at page 1. It has all the info there.

Now technically while the 50i caliper could fit on the 385mm rotor it would require spacers to lift the caliper up from the hub. But the 35i is not even an option. The braking surface is the same on the two size rotors. The M rotor just sits further from the hub. The piston is also larger on the 50i compared to the M caliper. Again all stated in this thread.

Honestly I wouldn't even waste the money on changing the rear caliper and rotor. Unless you go with an upgraded caliper such as a fixed 4pot brembo.
OP had posted earlier in this thread that the rears may not require a new bracket, hence the question.

Ordered stock size stuff for the rear. All in, I'm at about $1050 for used front calipers, new front rotors, new rear stock rotors, new Power Stop Z23 pads all around, new wear sensors. Not bad!!
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