Question on the 25mm master cylinder

[B3M2W5]

Would any one know if the 735i master cylinder (have also been told its the sames as the e34 m5 mc). Would any one know if it has intrenal propotioning valves. I would like to take my ABS out, due to it not working, and run new lines. I am not sure if the mc has internal ones or not and your not suposed to run propotioning valves if the mc already has them.
Any one help me out with this one.

[PiercedE30]

It doesn't. Look underneath the brake booster on the frame rail next to the firewall. The brake line that runs back there has a proportioning valve inline with the brake line. It looks like a small cylinder.

[B3M2W5]

good to know, but just to make sure that is also the case with the bigger master cylinder, i can understand that with the old E30 MC but i was just checking and making sure with the Bigger MC outa the 735/ M5 mc