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Old 02-10-2013, 03:00 PM
HDEddie1's Avatar
HDEddie1 HDEddie1 is offline
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Location: So Calif
Join Date: Jul 2012
Posts: 178
Mein Auto: F10 550i, E60528i
M5 rear bar is 18mm

M5 guy from another forum confirmed for us his rear bar on his F10 M5 is 18mm. For those of us wanting to match the factory set up when upgrading to the M5 front bar, the makes the choice for the rear real easy- use the F07 GT 18mm
Originally Posted by Alan L. View Post
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

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.


Last edited by HDEddie1; 02-11-2013 at 10:34 AM.
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