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      03-07-2016, 10:28 PM   #1
Steve_Jr
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M4 carbon fiber strut brace and other stiffening parts on F32 4 series !!

Hello. There are 4 stages if you want to install M4 carbon strut brace on F32 4 series.

Stage 1 M4 Support bearing reinforcement ring
Stage 2 M4 Alloy center strut brace + M4 support bearing
Stage 3 M4 Carbon (CFRP) strut front end
Stage 4 M4 Extension suspension cross brace + Diagonal strut

My 2014 428i (N26) already has Ohlins R&T MP00 suspension and M4 genuine 437M wheel + PSS 235 / 265 tire. Currently Stage 3 completed .. Enjoy !!



Here we go : Both Beinforcement ring and Guide support bearing need to be matched with production year of yours. from 2015 it's changed from M10 3 hole to M8 5 hole.


Stage 1 M4 Reinforcement ring for Guide support bearing


~ 2014 : used M10 x 3 hole
Reinforcement ring, left : 31302285700
Reinforcement ring, Right : 31302285701
Hex screw M10 6 EA : 07119904141

2015 ~ : used M8 x 5 hole
Reinforcement ring, left : 31302361991
Reinforcement ring, Right : 31302361992
Hex screw M8 10 EA : 31307855400


Stage 2 M4 Alloy center strut brace + M4 support bearing

~ 2014 : used M10 x 3 hole
Guide Support bearing 2EA : 3130284702
Alloy Strut brace (left steering) 1EA : 31122284855

2015 ~ : used M8 x 5 hole
Guide Support bearing 2EA : 31307853702
Alloy Strut brace (left steering) 1EA : 31127855855

Torx bolt M10 (alloy SB - top) 56Nm 2EA : 31106854219
Torx bolt M8 (alloy SB - mount) 28Nm 6EA : 31106859809
Fillister head screw M10 (alloy SB - edge) 34Nm 2EA : 07147162464
Blind rivet nut, flat headed 2EA : 51718065070
Cover, windsheild panel, Left : 51718059699
Cover, windsheild panel, Right : 64318059697
Engine hood sealing, Left : 51768058561
Engine hood sealing, Right : 51768058562
Expanding rivet 6EA : 51118174185


Stage 3 M4 Carbon (CFRP) strut front end

CFRP strut front end 1EA : 51618061631
Cross link (only Coupe & Sedan) 1EA : 51647294928
Hex bolt M8 (CFRP - front) 28Nm 2EA : 22326760945
Hex bolt M8 (CFRP inside) 28Nm 6EA : 11287839136


Stage 4 M4 Extension suspension cross brace + Diagonal strut

Extension Strut Tower, Left : 31122284857
Extension Strut Tower, Right : 31122284858
Link, Left : 31122284859
Link, Right : 31122284860
Torx bolt M8 2EA : 07147248303

Bottom reinforcement option only for sedan, coupe (Convertible already installed)

Stiffening plate 1EA : 51617299690
Torx bolt M10 2EA : 07147313416
Diagonal Strut 1EA : 51647294929
Adapter plate 1EA : 51647311426
Tort bolt M10 2EA : 07146959643
Hex bolt M8 4EA : 07147321202

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Last edited by Steve_Jr; 11-23-2016 at 01:52 AM.
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      03-07-2016, 10:57 PM   #2
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nice! looks good and I'm sure feels even better.
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      03-08-2016, 02:45 AM   #3
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Nice upgrade!
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      03-08-2016, 04:19 AM   #4
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Nice upgrade, cool pictures. Any more deeper purposes than optical reasons? Surely not the weight, or?
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      03-08-2016, 05:36 AM   #5
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Quote:
Originally Posted by Dang3r View Post
Nice upgrade, cool pictures. Any more deeper purposes than optical reasons? Surely not the weight, or?

Defintely it is not dress up item, anyone even you cannot see anything when you park or drive.

M4 9J wheel gave several benefits to me for sheer driving but also gave more pressure to Ohlins suspension. Total 40mm + track distance increase between each front wheel needs stronger spring. I felt spring rate diffference a lot. it's getting softer than a case of with standard offset wheel. (damper setting as well)

Last edited by Steve_Jr; 03-08-2016 at 05:49 AM.
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      03-08-2016, 09:56 AM   #6
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Would you have the part numbers for the braces and the hardware? I'd be interested in maybe doing this in the future myself.
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      03-08-2016, 10:47 AM   #7
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Quote:
Originally Posted by 613Bimmer View Post
Would you have the part numbers for the braces and the hardware? I'd be interested in maybe doing this in the future myself.
Here we go : Both Beinforcement ring and Guide support bearing need to be matched with production year of yours. from 2015 it's changed from M10 3 hole to M8 5 hole.


Stage 1 M4 Reinforcement ring for Guide support bearing


~ 2014 : used M10 x 3 hole
Reinforcement ring, left : 31302285700
Reinforcement ring, Right : 31302285701
Hex screw M10 6 EA : 07119904141

2015 ~ : used M8 x 5 hole
Reinforcement ring, left : 31302361991
Reinforcement ring, Right : 31302361992
Hex screw M8 10 EA : 31307855400


Stage 2 M4 Alloy center strut brace + M4 support bearing

~ 2014 : used M10 x 3 hole
Guide Support bearing 2EA : 3130284702
Alloy Strut brace (left steering) 1EA : 31122284855

2015 ~ : used M8 x 5 hole
Guide Support bearing 2EA : 31307853702
Alloy Strut brace (left steering) 1EA : 31127855855

Torx bolt M10 (alloy SB - top) 56Nm 2EA : 31106854219
Torx bolt M8 (alloy SB - mount) 28Nm 6EA : 31106859809
Fillister head screw M10 (alloy SB - edge) 34Nm 2EA : 07147162464
Blind rivet nut, flat headed 2EA : 51718065070
Cover, windsheild panel, Left : 51718059699
Cover, windsheild panel, Right : 64318059697
Engine hood sealing, Left : 51768058561
Engine hood sealing, Right : 51768058562
Expanding rivet 6EA : 51118174185


Stage 3 M4 Carbon (CFRP) strut front end

CFRP strut front end 1EA : 51618061631
Cross link (only Coupe & Sedan) 1EA : 51647294928
Hex bolt M8 (CFRP - front) 28Nm 2EA : 22326760945
Hex bolt M8 (CFRP inside) 28Nm 6EA : 11287839136


Stage 4 M4 Extension suspension cross brace + Diagonal strut

Extension Strut Tower, Left : 31122284857
Extension Strut Tower, Right : 31122284858
Link, Left : 31122284859
Link, Right : 31122284860
Torx bolt M8 2EA : 07147248303

Bottom reinforcement option only for sedan, coupe (Convertible already installed)

Stiffening plate 1EA : 51617299690
Torx bolt M10 2EA : 07147313416
Diagonal Strut 1EA : 51647294929
Adapter plate 1EA : 51647311426
Tort bolt M10 2EA : 07146959643
Hex bolt M8 4EA : 07147321202

Last edited by Steve_Jr; 03-17-2016 at 08:22 PM.
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      03-08-2016, 12:47 PM   #8
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Awesome, hope this thread gets more attention since I'm sure that many people would like to know about how to integrate the M4 front suspension bracing. I know that I'd rather do this than simply get a strut tower brace.

Thanks OP!
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      03-08-2016, 01:31 PM   #9
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This conversion/addition did not look cheap .......$$$$$?

CFRP strut front end alone....https://www.turnermotorsport.com/p-1...uine-bmw-part/
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      03-08-2016, 01:48 PM   #10
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Looks great!
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      03-08-2016, 02:31 PM   #11
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Nice!!
Wondering how much it cost
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      03-08-2016, 03:44 PM   #12
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Nice, killer!
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      03-08-2016, 08:17 PM   #13
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Quote:
Originally Posted by scostu View Post
This conversion/addition did not look cheap .......$$$$$?

CFRP strut front end alone....https://www.turnermotorsport.com/p-1...uine-bmw-part/
Yes ... dont look cheap ...

https://www.ecstuning.com/Search/Sit...631/ES2767810/

That's the reason why I separated the stage ...

roughly

Stage 1 : $200
Stage 2 : $700
Stage 3 : $1,400
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      03-08-2016, 08:57 PM   #14
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Steve_Jr
Great write up. Looks awesome. Can only imagine how it feels!!

I guess we are all looking to get a better steering/ride response.
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      03-08-2016, 10:55 PM   #15
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      03-09-2016, 02:16 AM   #16
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Wow! That looks great! Nice work!
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      03-09-2016, 01:42 PM   #17
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Fantastic, I love it!
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      03-09-2016, 02:28 PM   #18
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WOW!!! Someone local, PLEASE take my money!!


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      03-09-2016, 06:14 PM   #19
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Hmm, would this work on F30 N55 with the intake in the way?
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      03-10-2016, 01:09 AM   #20
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Hmm, would this work on F30 N55 with the intake in the way?
F300 N55 intake looks better than N26 ...
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      03-10-2016, 02:47 AM   #21
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Question F30 330i LCI B48

Can I Install This into my F30 LCI B48 engine?


Quote:
Originally Posted by Steve_Jr View Post
Hello. There are 4 stages if you want to install M4 carbon strut brace on F32 4 series.

Stage 1 M4 Support bearing reinforcement ring
Stage 2 M4 Alloy center strut brace + M4 support bearing
Stage 3 M4 Carbon (CFRP) strut front end
Stage 4 M4 Extension suspension cross brace + Diagonal strut

My 2014 428i (N26) already has Ohlins R&T MP00 suspension and M4 genuine 437M wheel + PSS 235 / 265 tire. Currently Stage 3 completed .. Enjoy !!
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      03-10-2016, 06:33 AM   #22
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Can I Install This into my F30 LCI B48 engine?
If B48 engine has below layout , you should think changing intake box. The box looks a little bit high ...
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