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      06-24-2020, 10:06 AM   #45
LuisBoston
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Drives: '13 128i, '23 iX M60
Join Date: Feb 2008
Location: Boston

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2013 BMW 128i  [8.83]
2023 BMW iX M60  [9.50]
2007 328xi  [8.75]
Quote:
Originally Posted by tracer bullet View Post
Agreed!
I ordered the full control arm set.

https://www.turnermotorsport.com/p-3...m-upgrade-kit/

Quote:
Originally Posted by gjm120 View Post
Front or rear M3 control arms?

Front are a very good upgrade. Will add a little NVH, but, well worth it. At least to me it was.

Rear - the guide rods are worth doing. Others not so much. Read the thread "OE vs M3 Rear Suspension Arms" by fe1rx in the stickies in this section and see what you think.

And holy hell that thread is long and in-depth. Some serious technical discussion. A few times folks asked for the 'low down' on whether the upgrade to M3 or other control arms in back was worth it. It seemed to depend. You're both saying the uppers are definitely worth it and the lower can be avoided to save a few bucks.

I ordered that kit. Now with the M3 RSFBs, new PS4S tires, and the control arm kit, what will the ride be like for a non-track person like myself?

My biggest complaint with the stock set up, like folks I think, is that the rear gets unstable over bumps and the ride is too firm/choppy (esp with the RFTs). I have the PS4S on now and already notice a vast improvement.

The suspension work is due to occur next week. While I have the control arm kit on order, I could really go either way.
__________________
2023 BMW iX M60 BSM
2013 BMW 128i 6MT MGM/CR. M-sport/Premium/Cold, HK, Xenons, BMW SSK and PE. ED 7-12-2013
SOLD: '07 E90 6MT BSM/Terra, '18 F31 Sunset/Oyster, '21 Polestar 2

http://www.1addicts.com/forums/showthread.php?t=897862

Last edited by LuisBoston; 06-24-2020 at 10:27 AM..
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