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      04-19-2017, 03:34 AM   #1
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M4 380mm brake rotors fits E92 m3 hub?

It is possible to fit m4 380mm brake rotors on the e92 m3? Which modifications need to do to fit m4 rotors. Thank you
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      04-19-2017, 04:05 AM   #2
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yes its possible. you just need $4k.
https://www.turnermotorsport.com/p-3...m3/?pdk=AQYGAQ
there are better brakes for the same money, but thats not what you're asking.
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      04-19-2017, 04:33 AM   #3
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that kit used f10 m5 6pot caliper and ecs 382x36 2 peace rotors. that is not my question.
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      04-19-2017, 04:36 AM   #4
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i can buy for 550 4pot m4 brake calipers and m4 380 mm m rotors, brake calipers fit easy for sure, just need custom bracket, but i am wonder what is with rotors?
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      04-19-2017, 06:18 AM   #5
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they might. they will probably fit inside of the wheel, but depending on the "offset" of the rotor hat, it might push the rotor and caliper out closer to the wheel spokes. a few millimeters can make a big difference there. good luck.
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      04-19-2017, 10:03 AM   #6
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The M4 rotors look a lot like the E92 M3 GTS rotors, and you know how much those cost. Much cheaper to invest in a big brake kit.
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      04-19-2017, 10:11 AM   #7
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500 for calipers and m4 rotos with few hundreds mile is not expensive. new m4 rotors cost same as new e92 m3 rotors..
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      04-19-2017, 10:14 AM   #8
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That's cheap. Worth buying them to try anyways, even if the rotors don't fit, you can use the M4 Calipers still and sell the rotors off to an F8X that needs replacements.
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      04-19-2017, 11:19 AM   #9
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Quote:
Originally Posted by MDMA 135i View Post
It is possible to fit m4 380mm brake rotors on the e92 m3? Which modifications need to do to fit m4 rotors. Thank you

Are you saying you want to use those rotors with the E92 calipers?
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      04-19-2017, 12:04 PM   #10
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Originally Posted by dparm View Post
Are you saying you want to use those rotors with the E92 calipers?

No i find very cheap low mile m4 4pot calipers and m4 380mm rotors and try to find information is that possible to fit on the 1M/E92 M3.

If M4 rotors doesnt line up i will still be satisfied if m4 caliper work with my 360mm e92 m3 rotors, i hope that i only need custom bracket :/
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      04-19-2017, 02:38 PM   #11
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You might want to measure the piston sizes to make sure you aren't drastically changing the brake bias. It could make the car behave unpredictably under hard braking or at the track.
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      04-20-2017, 04:22 PM   #12
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All we need is someone to make a bracket for m4 calipers and rotors to fit our cars , cheap bbk .
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      04-20-2017, 07:21 PM   #13
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Originally Posted by deseroner View Post
All we need is someone to make a bracket for m4 calipers and rotors to fit our cars , cheap bbk .

I bought rotors and calipers, will update for few days if someone is interested..

Like you said, you think that only need to make custom bracket? No other modifications, i hope so , i am still not sure does m4 rotor is direct bolt on on e92 m3 hub. I hope for that also lol

Last edited by MDMA 135i; 04-20-2017 at 07:33 PM.
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      04-20-2017, 08:07 PM   #14
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Quote:
Originally Posted by MDMA 135i View Post
500 for calipers and m4 rotos with few hundreds mile is not expensive. new m4 rotors cost same as new e92 m3 rotors..
Wow that is cheap! I'd get them regardless. You can always sell them off for much more than that.

Where can I score a deal like that?
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      04-21-2017, 01:00 AM   #15
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Quote:
Originally Posted by becausephilchow View Post
That's cheap. Worth buying them to try anyways, even if the rotors don't fit, you can use the M4 Calipers still and sell the rotors off to an F8X that needs replacements.
Do you know if the M4 calipers bolt up to stock e9x m3 rotors easily?
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      04-21-2017, 07:42 AM   #16
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Quote:
Originally Posted by ///MPower15 View Post
Do you know if the M4 calipers bolt up to stock e9x m3 rotors easily?
They will bolt but need custom brackets for sure.

I will make pictures for you when i recive calipers. But for 360mm rotors you can find for cheap brembo 18Z, they will be perfect.
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      04-21-2017, 09:03 AM   #17
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I have a set of the front and rear calipers. They do not fit the spindles on the E9x.

I'll be attempting to make them work with the stock E9x rotors this summer with custom brackets.
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      04-21-2017, 10:18 AM   #18
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I don't understand why people mess around with retrofit of BBK from a different platform. Just get a proper BBK that actually improves what you have AND is properly sized (pistons / bias) and engineered for your car. Otherwise save your money and keep your OE stuff. Just my opinion.
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      04-21-2017, 10:38 AM   #19
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Quote:
Originally Posted by slicer View Post
I don't understand why people mess around with retrofit of BBK from a different platform. Just get a proper BBK that actually improves what you have AND is properly sized (pistons / bias) and engineered for your car. Otherwise save your money and keep your OE stuff. Just my opinion.

I know right, why would someone want to find a way to save money on a mod that is 99% of the time just for cosmetics.. that's just crazy!!, we should all save up for BBK at $8000 just to impress our friends, when we never really track the cars and our stock brakes are just fine for our power level...
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      04-21-2017, 10:48 AM   #20
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Quote:
Originally Posted by slicer View Post
I don't understand why people mess around with retrofit of BBK from a different platform. Just get a proper BBK that actually improves what you have AND is properly sized (pistons / bias) and engineered for your car. Otherwise save your money and keep your OE stuff. Just my opinion.
Not all of us have the money to blow on a set of AP Racing brakes like you!

Using the brakes from the newer platform isn't going to affect bias in any significant way in this particular case.
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      04-21-2017, 05:41 PM   #21
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Quote:
Originally Posted by doogee View Post
Not all of us have the money to blow on a set of AP Racing brakes like you!

Using the brakes from the newer platform isn't going to affect bias in any significant way in this particular case.
My e92 m3 rotors are below min thicknes and they are warped i need new one. If i bought Zimmerman replacment oem 360mm rotors which cost 430 and brake pads about 150=580 total. I bought new m4 rotors(they have 500km max) for 130, m4 front brake calipers for 500 and new m4 brake pads for 100 total=730 so it is work to risk to fit this because i will have better brakes for only 150 more..
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      04-21-2017, 06:08 PM   #22
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Quote:
Originally Posted by MDMA 135i View Post
Quote:
Originally Posted by doogee View Post
Not all of us have the money to blow on a set of AP Racing brakes like you!

Using the brakes from the newer platform isn't going to affect bias in any significant way in this particular case.
My e92 m3 rotors are below min thicknes and they are warped i need new one. If i bought Zimmerman replacment oem 360mm rotors which cost 430 and brake pads about 150=580 total. I bought new m4 rotors(they have 500km max) for 130, m4 front brake calipers for 500 and new m4 brake pads for 100 total=730 so it is work to risk to fit this because i will have better brakes for only 150 more..
I do believe you need adapters for hub . Maybe you can get someone to fabricate some .
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