A.B.S. discs for my M3 (with M4 brakes)

I am wondering, who is OEM brake disc maker for F82 M4 2-piece front discs? Year ago I bought from Zimmermann, but soon I started to experience different type of vibrations on hard braking. Now I purchased A.B.S. branded discs. They are very similar, also similarly priced. Wondering, are these exactly the same?

Still not ready to pay 3x for StopTech or similar 2-piece floating discs.

I am using Ferodo DS2500 pads.


More about my brake upgrade here: https://tarantula-crane-b84b.squarespace.com/config/pages/5d62a4fcad10d800015036d5

Product codes for F82 M4 front discs:

BMW OEM

  • OEN 34112284809 — BMW (Left)

  • OEN 34112284810 — BMW (Right)

A.B.S

  • EAN: A.B.S. 2220614462743

  • EAN: A.B.S. 2220614462744

ZIMMERMANN

  • EAN: ZIMMERMANN 4250238768203

  • EAN: ZIMMERMANN 4250238768210