Brake discs Zimmermann or STOPTECH

What I've discovered is that the design of the OEM rotors are BMW 2-piece brake rotors with iron friction ring with a lightweight aluminum rotor hat. This design , to me, has flaws and is prone to excessive heat and warps rather quickly. I've had the same problem repeatedly. I switched to Zimmerman one-piece cast iron rotors with OEM pads, and I've driven very hard, and it hasn't happened ever again.

I went with Zimmermann discs for their cost and have had no issues with them.

I've tried 3 brands of rotors just in one year of ownership in my e46. Do Zimmerman. They were my third brand I did. Other 2 warped so damn fast

I like my Zimmerman rotors and akebono pads.

Zimmerman rotors are pretty much the item of choice as far as I know, and I’ve always sworn by Hawk HPS pads if you’re street driving.

I just did my front and rears as well here are the fcp euro part numbers. (No brake dust, & feels amazing)

daily driving, you can get a full set of bosch pads from rock auto for ~60$. I like stoptech slotted rotors to help get debris off the pads. they also hold up a bit better than standard blanks. drilled rotors are mostly for looks and can crack much easier under heat unless you are spending big bucks on a high end rotor, which imo isn’t worth the cost.

I have the Stoptech Z23 slotted and drilled rotors with carbon ceramic brake pads. Overall, I’m happy with them. The biggest complaint is that they use undersized brake pads, which is a feature that performance pads have in order to accommodate expansion under high heat. Because they’re undersized, when you brake in the opposite direction that you brakes last, they will “click” as they shift slightly inside the caliper. They don’t do it while driving unless you change direction, but I would have considered less aggressive pads if I knew they would do this. That said, I have had zero issues and great braking performance in spirited driving and emergency braking, over the last 45K miles or so.

Zimmermann rotors are made in Germany, while Brembo rotors are made in Italy....... how would they pull that off?

My experience with my 2015 - non-PP - is that the pads are about the worst that I have ever experienced. Material transfer on the front rotors was a constant problem...this stopping from 75 mph at the bottom of a long highway ramp...the pulsating changed in sync with how hot the day was and how hard I was using the brakes...I do not drive this car hard. I replaced everything.