[Heitzer]

Originally Posted by khj24

Another option I found, not a bad price. This is probably the closest thing to the OEM mperf rotors, although this one is one piece.

https://www.bimmerworld.com/Brakes/B...106797602.html

Zimmerman is an established, low cost brand in Germany with solid reputation. Their products are certified by the German TÜV which should help (very tough testing agency)
https://www.otto-zimmermann.de/en/oe.../material.html

The quality of Zimmermann discs have been discussed in German Forums. General consensus is that they are ok to use instead of OEM. Issues with drilled rotors were noted but that's the usual drilled rotor issue I think. And not using them with aggressive pads was another recommendation.

For the price not a bad choice it seems.

I am looking at the Stoptech slotted rotors.