M4 380mm brake rotors fits E92 m3 hub?

[tree233]

Originally Posted by KevM3UK

Now this is the one where its slightly different, note the four holes for the wheel bearing , they sit around 4-5 mm lower on the M4 spindle, making the length from the strut top mount to the wheel centre 4-5mm longer, this will raise the car's ride height ever so slightly, we'll see later on!

Hey KevM3UK I'm wondering if the ball joint locations have also been moved down 4-5mm as well, or if they're now closer to the wheel bearing location?

Did you measure from the wheel bearing holes to the ball joint connection points by any chance? Is it easy to measure now that it's installed?

Cheers

[Banma]

I did this job a couple weekends ago and wanted to share a couple things that I encountered along the way.

In my case, I needed 2 washers per bolt to centre the rear calipers.

[Banma]

Also, there was a small ridge on the rear dust sheild that contacted the inside of the rotors and made an unmistakable metal on metal sound. Once the rotors came off again, I used a hammer and chisel to pound it back out of the was a couple degrees all the way around and that was all it took

[Banma]

And finally, the wheel speed sensor issue: Just use f8x sensors on the f8x spindles! Splice on the e9x connector. Its dead simple, white wire to white, black wire to black and off you go. I haven't had a single issue

[Edberto]

Originally Posted by Banma

Also, there was a small ridge on the rear dust sheild that contacted the inside of the rotors and made an unmistakable metal on metal sound. Once the rotors came off again, I used a hammer and chisel to pound it back out of the was a couple degrees all the way around and that was all it took

Originally Posted by Banma

I did this job a couple weekends ago and wanted to share a couple things that I encountered along the way.

In my case, I needed 2 washers per bolt to centre the rear calipers.

Exactly the same in my case (2008 E90) on both points and in total it is about 5mm of washers to get the rear caliper centered.

[Banma]

Mine is an 08 e90 as well, early production model... maybe there are are some slight variations on those cars?

[Nounou974]

Bonjour, intéressé pour installer un kit M3 f8 sur mon M3 E92 j'ai trouvé cet adaptateur :
https://epytec.de/en/detail/index/sArticle/15412

Qu'en pensez-vous ?

[Nounou974]

Hello, interested in installing an M3 f8 kit on my M3 E92 I found this adapter:
https://epytec.de/en/detail/index/sArticle/15412

What do you think ?

[Nounou974]

Hello, interested in installing an M3 f8 kit on my M3 E92 I found this adapter:
https://epytec.de/en/detail/index/sArticle/15412

What do you think ?

[leita0]

Originally Posted by Nounou974

Hello, interested in installing an M3 f8 kit on my M3 E92 I found this adapter:
https://epytec.de/en/detail/index/sArticle/15412

What do you think ?

Looking to know! Already have the brakes i would prefer this bracket than to buy new knucles for the m4

[nycplumber]

Why would someone choose this over ST40 kit?

[tdott]

Originally Posted by nycplumber

Why would someone choose this over ST40 kit?

Less cost, all oem parts, lifetime fcp replacement pads and rotors, 380mm vs 355mm front rotor.

Performance difference between the two can probably be debated or might not even be much of a difference but the above can't.

Either option is good, and it's good to have different options available. You just choose the best one for your needs.

[nycplumber]

How much is the whole set up because the st40 fronts are like $2300

[Gouki]

I paid $2250 for a lightly used set of calipers, pads and rotors. Then I purchased two M4 knuckles for $180 each. I didn't account for the different M4 lugs, nor the requirement to move to 19" ZCP wheels.

I'm very happy with the performance of this brake set up, albeit with Pagid RSL29s and RBF660 fluid. The ability to better modulate the brake application significantly improved my laptimes though I don't necessarily think absolute stoping performance has improved.

I'd recommend the upgrade if your existing set up was as tired as mine, circa 160k miles on the calipers I suspect.

[tdott]

Originally Posted by nycplumber

How much is the whole set up because the st40 fronts are like $2300

costs of used parts vary widely, when I did it, I got a full set of brakes for $1000 with only 10k miles and in great shape. now it's a bit more.

My cost was $1600 for all 4 corners. Probably a bit more now depending on how much you find parts for.

Originally Posted by Gouki

I didn't account for the different M4 lugs, nor the requirement to move to 19" ZCP wheels.

Certain 18" wheel do work, the new Apex wheels work (not the OG arc8). I run 18"x10" Bimmerworld TA5r as my track wheels

[tdott]

Originally Posted by nycplumber

How much is the whole set up because the st40 fronts are like $2300

The current price today for the ST40 kit is $3774.13

https://www.buybrakes.com/stoptech-8...ce-brake-rotor

I doubt you'll see anything close to $2300 for a new kit any time soon. Used kits are also hard to find.

[nycplumber]

I just bought front and rear st40s from buybrakes and paid exactly that. $4690 for both shipped. Just gotta reach out to them through email. Adam is great

[tdott]

Originally Posted by nycplumber

I just bought front and rear st40s from buybrakes and paid exactly that. $4690 for both shipped. Just gotta reach out to them through email. Adam is great

Looks like a good deal.

But that is a decent amount more than I paid for my setup which I am happy with.

[nycplumber]

Thanks, in my opinion you can't go wrong with either set up

[North.E92]

Can anyone confirm if the m2 uses the same knuckles as the m4?

[ornicar]

Originally Posted by North.E92

Can anyone confirm if the m2 uses the same knuckles as the m4?

I confirm they use the same Knuckles

Left #31212284001
Right #31212284002


2' F87 M2   (11/2014 — 06/2017)
2' F87 M2 LCI   (09/2016 — 12/2019)
3' F80 M3   (04/2012 — 06/2015)
3' F80 M3 LCI   (01/2015 — 10/2018)
4' F82 M4   (02/2013 — 02/2017)
4' F82 M4 LCI   (05/2016 — 12/2019)
4' F83 M4   (06/2013 — 02/2017)
4' F83 M4 LCI   (05/2016 — 12/2019)
MS BMW Motorsport   ( — )

[smokinjoe64]

Anyone find a reliable source for only the bracket to retrofit front calipers [F80, Brembos]?

Seems either bundled w/BBK or not sold separately. Turner example: