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2010 2011 BMW 5 Series Forum F10 F10 Technical Topics Wheels / Tires / Suspension / Brakes ACS Springs added to 2012 550i M-Sport
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      06-26-2012, 01:55 PM   #1
Stealth7
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ACS Springs added to 2012 550i M-Sport

Yesterday I added ACS Springs to my 2012 550i M-sport. My car does NOT have ARS.

So far, the springs are awesome! The change comes from both lowering the car a modest amount and the stiffer springs.

Body roll, dive on braking, squat on acceleration and steering responsiveness are all changed for the better. The car feels much more like a SPORT sedan now and closer to my 2009 E60 550i M-Sport. The F10 is bigger and more luxurious so there will always be some differences. DHP works fine and so far no adverse issues.

I will report back when I have some miles on the springs.

Last edited by Stealth7; 06-27-2012 at 12:35 AM.
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      06-26-2012, 02:45 PM   #2
jftoha
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Can you post your impression of the ride quality differences?
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José Tohá ---------------------------------Chilean Architect, Living in Washington, DC.
PRESENT: F10 535I Sport, Alpina 21" wheels, AC Schnitzer springs, M5 Grill.
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      06-26-2012, 03:01 PM   #3
Alan l.
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Nice!

Another awesome review for the ACS springs....

Alan
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      06-26-2012, 06:43 PM   #4
Stealth7
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Ride Quality is really unchanged, except as noted in the initial post. I.e., lower (lower CG for better handling) and tighter, but still compliant. Of course, I live in Orange County and generally travel on good roads. I travel over some surface streets that are a bit rough, but nothing too bad. For me, the car should have come with these springs.
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      06-27-2012, 12:15 AM   #5
jftoha
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Quote:
Originally Posted by Stealth7
Ride Quality is really unchanged, except as noted in the initial post. I.e., lower (lower CG for better handling) and tighter, but still compliant. Of course, I live in Orange County and generally travel on good roads. I travel over some surface streets that are a bit rough, but nothing too bad. For me, the car should have come with these springs.
Thanks, that helps a lot. I am getting ready to install mine soon.

Best,
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José Tohá ---------------------------------Chilean Architect, Living in Washington, DC.
PRESENT: F10 535I Sport, Alpina 21" wheels, AC Schnitzer springs, M5 Grill.
PAST: E63, E39 (2), E34 (2), E36, E24, E30 (2)
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      06-27-2012, 05:02 PM   #6
EBRSKIH
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Installed mine yesterday as well. Feels smoother than the stock springs which was a huge surprise. Congrats
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      06-28-2012, 01:09 AM   #7
Stealth7
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Quote:
Originally Posted by EBRSKIH View Post
Installed mine yesterday as well. Feels smoother than the stock springs which was a huge surprise. Congrats
I really like the lower ride height-feels like a sport sedan and really does handle much better. It is not like my Viper but it feels tighter and more connected than the f10 550i MSport stock--no longer a high, fluffy, floaty boat.
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      06-28-2012, 09:27 AM   #8
Russkey
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Garage List
2012 550xi  [5.00]
Agree with every word! I installed them a few weeks ago on the xdrive. One word - AWESOME
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      06-29-2012, 08:39 AM   #9
jftoha
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We need some photos!!
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José Tohá ---------------------------------Chilean Architect, Living in Washington, DC.
PRESENT: F10 535I Sport, Alpina 21" wheels, AC Schnitzer springs, M5 Grill.
PAST: E63, E39 (2), E34 (2), E36, E24, E30 (2)
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      06-30-2012, 06:05 AM   #10
Hunter5179
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Glad to hear it...I like my ACS springs a lot too.
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My Thread:
http://www.6post.com/forums/showthread.php?t=794659
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      03-13-2013, 09:16 PM   #11
ferrarif1
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When you had your ACS springs installed, did you do an alignment right away or wait a few weeks?

Was there a measurable drop after a few hundred miles/few weeks as the springs settled? If so, how much?

Thanks!
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