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2010 2011 BMW 5 Series Forum F10 F10 Technical Topics Wheels / Tires / Suspension / Brakes M5 Sway bar to 550i?
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      01-23-2013, 11:02 PM   #45
joe@ptech
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Quote:
Originally Posted by Alan l. View Post
As for the rear bar look into the F07 550GT or the F10 M550dX.

Both of them offer thicker bars based on my research so far. I think the stock rear bar is 14mm and the m550dx is 16mm and the 550GT is 18mm!
You the man, that is a good call on the 550GT. I've been trying to source the M550D bar, but the 550GT looks to be the largest.
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      01-24-2013, 12:26 AM   #46
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Quote:
Originally Posted by joe@ptech
Quote:
Originally Posted by Alan l. View Post
As for the rear bar look into the F07 550GT or the F10 M550dX.

Both of them offer thicker bars based on my research so far. I think the stock rear bar is 14mm and the m550dx is 16mm and the 550GT is 18mm!
You the man, that is a good call on the 550GT. I've been trying to source the M550D bar, but the 550GT looks to be the largest.
Now, we have hope.

Are u trying combine M5 bar (front) and 550 GT (rear) next?
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      01-24-2013, 01:02 PM   #47
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I am going to try the front M5 bar on my 2013 535xi.

Joe@ptech is going to try out the F07 550 bar in the rear since its 18mm which is 4mm bigger than stock. Hopefully he has good news for us.

Alan
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      01-24-2013, 01:57 PM   #48
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Yes, ordered the F07 bar today. So we should have news within the week. If all goes well, we are happy to host a group buy for the combined front and rear bars.
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      01-24-2013, 04:20 PM   #49
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Originally Posted by joe@ptech View Post
Yes, ordered the F07 bar today. So we should have news within the week. If all goes well, we are happy to host a group buy for the combined front and rear bars.
Great, really looking forward to the group buy!
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      01-24-2013, 04:29 PM   #50
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Quote:
Originally Posted by Alan l.
I am going to try the front M5 bar on my 2013 535xi.

Joe@ptech is going to try out the F07 550 bar in the rear since its 18mm which is 4mm bigger than stock. Hopefully he has good news for us.

Alan
Hi Alan,
Thanks for trying out for 535xi folks
Please keep us posted!!
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      01-24-2013, 05:25 PM   #51
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Someone had to do it

Just hope i don't end up with a big paperweight lol

Alan
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      01-24-2013, 05:50 PM   #52
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Someone had to do it

Just hope i don't end up with a big paperweight lol

Alan
I can help sell it if needed.
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      01-29-2013, 01:11 PM   #53
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F10 M5 sway bar shipped! I might attempt to install it this weekend

Hopefully its good news for us Xdrive guys that is looking for tighter handling.

Alan
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      02-02-2013, 02:25 AM   #54
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Quote:
Originally Posted by Alan l.
F10 M5 sway bar shipped! I might attempt to install it this weekend

Hopefully its good news for us Xdrive guys that is looking for tighter handling.

Alan
Any news?
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      02-02-2013, 12:42 PM   #55
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Confirmed!! The M5 front sway bar is a direct fit for my 2013 535xi!!

Visually it is much thicker and so far the car feels more planted and tight. Will report back after some more driving but so far its worth every penny!

This a big news for the F10 community lusting after better and sportier handling!

Next up...550GT rear sway bar after Joe confirms 100% it fits.

Alan
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      02-02-2013, 04:58 PM   #56
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All I have to say is wow and everyone must do this. This is how the car should have came stock. My car has DDC and ACS springs and I am in sport mode 99.9% of the time. Before the M5 sway bar I would rate the handling of my F10 a 4 or 5 out of 10 at best compared to my previous E46 and E90 on coilovers but now its a solid 7.

The suspension just feels tighter and more solid up front and you notice it this when going over bumps and uneven roads. The car is flatter during turns and the steering feels alittle more direct/precise during high speed lane changes. Before I would anticipate the roll/sway movement but now the car just points to where you want it. It isn't a track car by any means but that wallowing feeling is pretty much gone or barely noticeable anymore. Nothing negative about doing this mod at all so far. Very pleased.

Alan
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      02-02-2013, 05:57 PM   #57
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Sweet, thanks for the update. We are happy to host a group buy for a discount on these parts for anyone that is interested. I hope to have the F07 bar this coming week.
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      02-02-2013, 09:50 PM   #58
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Quote:
Originally Posted by Alan l.
All I have to say is wow and everyone must do this. This is how the car should have came stock. My car has DDC and ACS springs and I am in sport mode 99.9% of the time. Before the M5 sway bar I would rate the handling of my F10 a 4 or 5 out of 10 at best compared to my previous E46 and E90 on coilovers but now its a solid 7.

The suspension just feels tighter and more solid up front and you notice it this when going over bumps and uneven roads. The car is flatter during turns and the steering feels alittle more direct/precise during high speed lane changes. Before I would anticipate the roll/sway movement but now the car just points to where you want it. It isn't a track car by any means but that wallowing feeling is pretty much gone or barely noticeable anymore. Nothing negative about doing this mod at all so far. Very pleased.

Alan
Thanks for the update, Alan. It's great to hear it improves the handling a lot just with a front bar. How is the ride?

Joe,
Can you host a group buy M5 front bar and F07 rear bar (assuming it works)?
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      02-02-2013, 10:20 PM   #59
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Ride quality did not suffer at all IMO. Drove around all day and could not be happier with it.

The M5 part # is 31352284460

It comes with the bushings already mounted on the bar. You reuse your existing bolts and endlinks.

The install is a breeze. Once the underbelly pan is off there's only 6 bolts to remove the bar. You can do it easily yourself on ramps or let your shop do it. They should not take more then 20-30mins tops.

Alan
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Last edited by Alan l.; 02-02-2013 at 10:27 PM.
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      02-02-2013, 11:56 PM   #60
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Quote:
Originally Posted by Alan l.
Ride quality did not suffer at all IMO. Drove around all day and could not be happier with it.

The M5 part # is 31352284460

It comes with the bushings already mounted on the bar. You reuse your existing bolts and endlinks.

The install is a breeze. Once the underbelly pan is off there's only 6 bolts to remove the bar. You can do it easily yourself on ramps or let your shop do it. They should not take more then 20-30mins tops.

Alan
I have ACS springs now, my 535i still sways more than I like. Great to hear the bar solves most of it.

The M5 I test drove was very flat.

Thanks
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      02-03-2013, 12:21 AM   #61
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We need a group buy now!!!
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      02-03-2013, 06:14 AM   #62
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dose any 1 know if the front M5 sway bar and 550GT rear sway bar fit my 2012 528i?
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      02-03-2013, 09:05 AM   #63
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Look at reamoem.com and start comparing part numbers. If your car shares any part numbers as the 535/550 when the M5 front bar will fit your car too.

Looking at the 528i it shares the same front sway bar as my 535 if you have the ddc/edc shocks so safe to assume the M5 bar will fit. No gurantees though but I'm willing to bet it does.

Alan
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      02-03-2013, 03:02 PM   #64
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As soon as I can confirm the F07 rear bar works, which I'm pretty sure it will....we can host a group buy for everyone to save on these bars. We can ship anywhere in the States.
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      02-03-2013, 03:13 PM   #65
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By reading this thread, M5 front bar fits both non-xi and xi models but M5 rear bar does not. Will F07 bar fit RWD 550i?
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      02-04-2013, 12:18 PM   #66
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^^Joe@ptech is going to find that out real soon

Now with the rear bar.

Turns out on the 535 theres several sizes that the car comes with depending on options and if its RWD or AWD.

535i standard rear bar is 13MM
535i Msports rear bar is 14MM
535xi standard rear bar is 14MM
535xi with EDC/DDC rear bar is 15MM

I did not check this for the 528 or the 550 but you can easily do it with realoem.com

Since my car comes with a 15MM rear bar I will go with the 18MM F07 550GT's rear bar for a 3mm increase. Looks like you will also need to purchase new bushings with bigger internal diameter to hold the thicker bar. Hopefully thats it.

Alan
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