Quote:
Originally Posted by asbrr
I did not, using the stock 128i master cylinder. Of note, I have not added the rear matching calipers for the BMW performance system on the 128i, these are larger 42mm single piston vs the stock 40mm single piston, but not the same as the 135i rears. Not sure if adding that small increase in piston size in the rear would push the brake feel over the edge, but as it is right now I noted no negative side effects of the front caliper install, in fact it was a huge improvement.
Lastly - I have also not done the "coding" for the BMWP brakes...I've had the car on the track a couple of times with no complaints so far so not sure if I will get to that...
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So you're running 135i front calipers and 128i rears and obviously happy with the feel and balance.
The 135i rear calipers are 2 piston? I guess that could over tax the m/cylinder.