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Since the original thread is too long, I figured it would be useful to combine all of the info in one place that is easier to follow:
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-f8x-m4-brakes-on-e92-m3.html
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:
- F8x Calipers and Rotors/Pads
- F8x Spindles
Right: 31212284002
Left: 31212284001 - 4x M12 Flat washers, ideally around 2mm thickness.
- F8x dust shields or you can cut trim the e9x ones.
(also not a bad time to do brake ducting with a custom backing plate if you wanted to go that route) - Wheel bearing bolts (one time use)
31206783065 - M12X1.5X45 - (x8 - 4 per wheel bearing)
These bolts are required because the f8x carrier has a ball seat vs e9x which is flat
These are not the ones from an f8x since the f8x wheel bearings are a different thread pitch, I ordered these ones new from FCP Euro.
- New Brake lines are recommended, I went with E9x M3 Stainless steel lines from FCP Euro
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-f8x-m4-brakes-on-e92-m3.html
