04-17-2023, 10:29 AM | #1 |
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Brakes and Rotors
I am due up for new front and rear brakes and have decided to go with the EBC Redstuff but I'm wondering if I should go with the OEM BMW Rotors for my M240ix or aftermarket.
Locally from BMW the front and rear rotors run for $300/front and $270/rear each. (CAN$) Are the stock rotors on the 2018 240ix made by Zimmermann? I found the same rotors for slightly cheaper. |
04-19-2023, 07:43 PM | #2 |
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The original rotors on our car are 2-piece riveted (permanent attached) with an aluminum 'hat' section. When looking at the Zimmerman rotors they make an OEM equivalent 2-piece, and a solid 1 piece. Get the 2-piece version. These rotors are already quite heavy, and the one piece are several pounds more.
For example, I recently replaced the rear rotors on my M235i. These are the OEM Zimmerman 2-piece ZIM-150292132 https://www.fcpeuro.com/products/bmw...nn-34206797605 ^^ This is what I ordered and they work perfectly. These are the cheaper, heavier 1-piece ZIM-150292120 https://www.fcpeuro.com/products/bmw...nn-34206797605 So be careful of just shopping by price. Look for the specific model with the 2-piece design. |
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04-20-2023, 08:26 PM | #3 | |
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https://www.fcpeuro.com/products/bmw...nn-34116792223 I am debating if I should match the two piece stock rotors with the ebc redstuff or go with the ebc kit that includes the USR Series Rotors Here is one of the kits: https://www.tdotperformance.ca/ebc-b...oiNDAyMzA4Ijt9 I know their are benefits of going with a two piece rotor but will it be a noticeable change if I jump to a one piece rotor kit setup? |
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04-21-2023, 06:38 PM | #4 |
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Personally, I don't think you can beat the OEM riveted 2-piece for performance and value. Lighter is always better, and although I don't know for sure, I would strongly suspect the kit 1 piece are heavier. And except for extreme track use, slotted/dimpled/drilled rotors do not provide any better braking performance, and tend to be noisier.
You can use the pads with any type of rotor. They aren't matched in any way. |
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04-22-2023, 07:39 PM | #5 | |
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Would these be the OEM fronts for my 2018 M240ix? https://www.fcpeuro.com/products/bmw...nn-34116792223 |
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04-24-2023, 09:29 PM | #7 |
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04-25-2023, 07:35 PM | #8 | |
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https://www.fcpeuro.com/page/oe-academy They have a blog post describing Heavy Duty and other terms here: https://blog.fcpeuro.com/genuine-oe-...ity-tiers-mean Generally, if it says OE or OEM, it's equivalent to the manufacturer part. Maybe not the exact same part it was built with, but it should be equivalent. For my rear discs, I did the Zimmerman, and they certainly look identical to what was on the car. But they aren't genuine as they actually have a nice anti-rust coating on them, which the original BMW discs don't. For my front discs, since I track and I wanted the original matching, I paid for the Genuine BMW. And they were an exact match to what I pulled off the car. But I'm not sure they were worth the extra money, and they didn't have that nice anti-rust coating. |
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04-25-2023, 10:00 PM | #9 | |
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to find the OE Zimmerman rotors at a Canadian online retailer so may have to order them and pick them up myself across the border. Last edited by dirty_denim86; 04-26-2023 at 07:30 AM.. |
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04-27-2023, 06:56 PM | #10 |
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The zinc coating is pretty weak as a selling feature. Mine didn't even last 2 non-winter months before turning brown at the cooling fins. The hats are still good though.
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