Brake discs Zimmermann or OEM BMW

I went with Zimmerman blanks and Hawk HPS pads (non 5.0), been very happy with them.

I went with Zimmerman rotors and oem pads on my M340i. Perfectly happy with the cost savings over the oem rotors.

I just ordered pads, rotors and sensors for my 16 M235i. Cost out the door was $1000 for BMW OEM parts. Rotors are each unless it's bought in a kit. ($177 each) Rotors are likely smaller on the rear wheels.

You mention cost but not weight differential of the rotors, many people move to girodisks because it reduces the weight at each corner. With regards to blanks vs drilled, I have had no issues running drilled (Zimmerman) on my previous Audi TTs and my current 718. I run a dedicated set for track with Carbotech XP12s, no fade, no issues. 718 is in roughly the same weight category, 3k ish.

I had my V60t6 2020 done for 800$ with Zimmerman rotors and Hawk pads (high performance). The job was done by 2 technicians within 1h.

Solid, Zinc coated Zimmermann with Red Stuff pads. I'm stage 1 and push my car a bit occasionally and have never had any issues stopping when I want to.

I replaced my previous rotors with Zimmerman ones and they also had this notch so don’t worry about it as it’s normal.

I used Zimmerman rotors and ATE ceramic pads all purchased from fcpeuro.com. With stock pads I could wash the car and within two days they would be brown from brake dust. Now I can go weeks before I start to notice that there may be a little dust.

With the ceramic pads I cannot tell a difference in braking, I have almost no brake dust, and the rotors still look like new.

Zimmerman rotors (heavier then I would like)

Also don't opt for Zimmermann. Go ATE, TRW or Textar. Trust me. Been there regretted every penny I spend on those death traps.