I've installed drilled and slotted rotors on my pickup, BMW X5, and just ordered a set for my BMW Z3. I live in the mountains, drive spirited, and definitely have improved braking performance with them. Make sure you bed the pads in correctly.
I used both before Zimmerman is good and cheap. Akebento are good too but hard to find and more expense. I practically used all brake pads and rotors over the 13 years I own the RRS. I would recommend using cermpads.
Zimmerman rotors and Hawk HPS pads. Rotors are not drilled or slotted. The car stops on a dime and just saved me on the highway yesterday. This was the first modification I did and I'm glad I did it.
Zimmerman makes great rotors.
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 did Zimmerman/Akebono on my e39 about 3000 mikes ago. My only complaint is the bite. It doesn't have that initial braking force the OEM pads had. It still slows the car down without fail, just a different feel.
I put cheap rotors in the front. They suck and made braking unpredictable and dangerous, especially from 150kmh plus. I bought Zimmermanns a week later and the problem completely vanished.
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