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04-22-2020, 02:15 PM | #1 |
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F80 M3 / F82 M4 Brake Caliper/Rotor Retrofit Guide to E9x M3 - Using OEM Parts
![]() Featured on BIMMERPOST.com I've been getting a lot of questions about my F8x M4/M3 brake upgrade, so I thought I'd give an overview on how it is done and what parts are required. This is not meant to be a step by step DIY but a guide on how it's done since it's really pretty simple with the right parts. They can also be done using F8x CCB setup or M2 Comp parts as well. ![]() Part list:
![]() Finally, you need to decide how to handle the ABS sensors. Since the F8x sensor location is slightly different requiring you to change the orientation of the E9x ones to read correctly. Some have cut the e9x ones and created a holder out of metal. Using the abs live obd2 reader, I was able to get the sensor to read correctly in this position (cut portion facing towards the outside center of the hub) ![]() ![]() Full Install notes are on my blog with more pictures, not meant to be step by step but will give you a guide, it's fairly straight forward but I do include a few tips. https://www.tdott.me/2020/04/project...on-e92-m3.html
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Last edited by tdott; 04-23-2020 at 10:50 PM.. |
04-22-2020, 02:31 PM | #2 |
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Mod, please move to Suspension | Brakes | Chassis section.
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04-23-2020, 10:40 PM | #4 |
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Nice guide! Super clear.
How are they as far as performance? Same? Improved? Obviously looks way better than e9x calipers. I hate how ugly our caliper are.. |
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04-23-2020, 10:48 PM | #5 | |
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Plus the rotor size, rotor hats with M stamp, and calipers all look better so that's a good improvement. Last edited by tdott; 04-24-2020 at 08:45 AM.. |
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04-24-2020, 09:22 AM | #7 | |
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You can try to source used spindles, but again costs vary widely. So you are better off pricing things out yourself. IMO, you couldn't buy a used front only bbk for the price I got this done at.
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04-25-2020, 12:30 PM | #9 |
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This is great!!!!! One of my future plans now for my ///M.
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2009 E90 M3 DCT Space Grey current
2005 E53 X5 3.0 Alpine white current 2008 E90 M3 6-speed Jerez Black Sold 2008 E90 335I 6 Speed Black Sapphire M-sport sold 2006 E53 X5 Black Sapphire sold |
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04-25-2020, 03:29 PM | #10 |
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This is great! I just picked up the F80 brakes. Now it's time to find some spindles! Anyone have a lead on those?
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04-27-2020, 06:55 PM | #11 |
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Does this improve braking in any way or is it mostly for aesthetics?
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04-28-2020, 09:09 AM | #12 | ||
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Quote:
![]() Quote:
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04-28-2020, 09:22 AM | #13 |
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Ugh now I want ceramics on my E92... 100% for aesthetics...
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04-28-2020, 09:26 AM | #14 |
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That would be pretty cool
![]() I wonder if stock zcp 359m wheels would clear?
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04-28-2020, 09:29 AM | #15 | |
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I wonder as well about the 359s, but right now I'm using the stock F80 CS wheels which look really sweet |
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05-11-2020, 08:33 AM | #16 | |
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![]() We can see if the 359 fits but its unlikely the fronts will clear. |
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05-11-2020, 09:28 AM | #17 |
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I have the front and rear ceramic calipers on my e92, just using steel rotors. Not baller enough for ceramic rotors yet, but who knows maybe one day ill redo it and adapter to ceramic. Would just need to figure out if the brake booster is enough for the requirements for ceramics.
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05-11-2020, 11:05 AM | #18 |
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Great guide!
For the ABS sensors, did you had to modify the cable themselves or just shove the F8x one into the E9x plastic enclosure? Does the F8x brakes work with E9x brake pad sensors?
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05-11-2020, 11:34 AM | #19 | |
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I've driven a GTS extensively on track, it's wonderful. But if I had to choose I'd prefer a third track car vs a GTS as a second track car |
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05-13-2020, 02:51 AM | #20 |
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Brake Lines
Curious on everyone's take here. I'm almost done with the swap and I have a question about brake lines. I have a StopTech set of E92 stainless brake lines that have been waiting to go into the car. I've installed them along with this conversion. The odd thing is that the male threading is much longer than the female well on the caliper, especially in the rear. So this means the lines aren't screwed in to the top of the threading and flush with the backstop. I reason that the only thing holding the lines in place is the tension from being bottomed out and slightly torqued. Think that is sufficient? The fix could be me getting a lug nut that I tighten down on the caliper once the line is screwed in as far as it can go. BTW, I wish BMW made the caliper retaining bolts a little better haha, and maybe not an Allen head. #stripped
TIA!
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05-18-2020, 01:13 PM | #22 |
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Yes for sure, identical process
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