Brake discs Zimmermann or R1 Concepts

I installed R1 Concepts slotted on my 13 R/T years ago. They are better than the brakes that came from the factory.

I went with R1 concepts. Really good brake rotors and brake pads so far. I’ve had their regular ones and just switched to drilled and slotted. I’ve noticed an improvement in braking after driving for a while as the brakes don’t heat up as much. But it depends on your driving style. R1 concepts kits also come with hardware if you select it which would help because the oem hardware get warn out after a while.

check out the Zimmermann set from FCP. Much smoother, and almost no brake dust. And I believe they cover a full replacement under their warranty program.

According to the newsletter today, Rock Auto has added Zimmerman to their catalog. They have some for Phaetons if yours has the smaller front rotors.

I used Zimmermann replacements discs and pads on my B9 RS4 for 5 years/70k miles. Had 3 sets all around over that time. The front discs and calipers are the same as the etron. They were good products and hard to tell the difference from OEM.

I replaced the front pads and rotors on my F20 M135i yesterday. Same Brembo brakes as yours. I did a lot of research, and there isn't really "better" than stock for the same money. The only better option would be to upgrade to bigger brakes, but that would cost way more. I ended up going with Zimmerman Z-coat two piece rotors and ATE pads. The Zimmerman rotors are the slotted and dimpled versions. BMW calls that the M Performance rotors as OE. They're the same size - 340mm. They reportedly don't give much of a performance increase, but they weigh about 8% less than standard discs. All together with the hardware (guide pins, caliper bolts, etc) was about £500 with shipping from Spareto.

ngl i just installed zimmerman rotors and they probably had that too but no problems

I have used R1 concepts geomet drilled/slotted rotors twice. The pads were pretty dusty but worked well.

Zimmerman are a good brand, but beware, the brake dust is seriously next level with them.

The R1 concepts will be rusting in 3 months or less.