Brake discs Zimmermann or GALFER

Had the same dilemma a few weeks back. Went with Zimmermann drilled rotors paired with EBC red. So far I've been pleased with them.

Brakes are doing great.

I just recently did the back brakes at 37k and the fronts last weekend at 39k on my 2020 M340i. Dealer said rotors were at min thickness last June but I waited for the sensors to actually trip and even then I got 1k+ miles with a good bit of pad life left still. Went with Zimmerman rotors and OEM pads from FCP Euro and second that combo. I read too many hit or miss stories about non-OEM pads, I don’t track my car, and brake dust aside like OEM brake feel.

Yes. Replace the rotors with each service. I run Zimmerman rotors and either BMW or TRW pads.

I'm using Zimmerman rotors and Textar pads. 11k miles and no complaints so far.

Can’t go wrong with Zimmerman blanks and OEM pads.

Running Zimmerman rotors with Porterfield R4S pads on mine. Brake dust is considerably less than the stock set up.

I just replaced all 4 rotors and pads last weekend. Found a good deal on Zimmerman rotors and TRW pads. My little diesel wagon is happy now. :)

I have the zimmermans, and I've heard numerous people tell me they've seen and heard of them cracking under heavy heated use. It kinda worries me a little, but they've been solid so far, and I've yet to really roast them... Honnestly if I were to do it again, I would probably go with the brembos even though they may be a little more expensive. whats more important to stopping, is pads. The difference between the stopping power and feel of different pads varries greatly. I've had some heavy carbon kevlar pads that took a long while to warm up but once they were warm grabbed really well, but they were kinda hard for regular street driving. I've used stock pads which pretty much suck but last forever, and I've used some softer sport street pads that wear and dust a little more, but stop far supperior to oters for regular street driving. I've yet to push them to the point of fade, but we'll see where that goes once I've got the suspension and bleeding sorted

I do not recommend Zimmermann, while they work ok for a lot of people, i had a lot of problems with the rotors.