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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Technical Forums > Suspension | Brakes | Chassis > Which Shocks with ZSP springs



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      07-31-2012, 12:44 AM   #1
eckoj
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Which Shocks with ZSP springs

Hi,
AS my car is getting bouncier and bouncier, i guess due to the worn shocks.
(06 330I with sport package, everything is stock.)

I just want to get some feedback or reviews from ppl who has replaced their oem shocks to aftermarket ones with stock zsp springs.( I like the height of the zsp springs, as it is a family car)

Any recommendations would be greatly appreciated.

Thanks in advance!
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      07-31-2012, 12:57 PM   #2
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Koni Yellow
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      07-31-2012, 02:30 PM   #3
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      08-01-2012, 01:49 AM   #4
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+1 if you can find cheap
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      08-01-2012, 02:44 AM   #5
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Check out Koni FSD shocks. Some members are running these w/H&R springs if you want to upgrade your springs too.
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      08-28-2012, 11:34 AM   #6
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Was wanting to bump this since I'm in a similar situation, which is staying with the stock zsp springs. Approaching 60k miles on the original shocks and was looking at my options. Was thinking either Koni Yellows or Bilstein HDs, but not entirely sure.
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      08-28-2012, 01:04 PM   #7
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I've used both Koni FSD's and Sports with oe zsp springs.
FSD's have better ride comfort and Sports handle better. Both are a better option than oe replacements.
I rode in a car with Bilstein HD's and they didn't feel any firmer than my Koni Sports.
As someone mentioned, if you can still get PS V1 dampers at $133, that'd be a good way to go.
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      08-28-2012, 01:06 PM   #8
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Quote:
Originally Posted by jakuum View Post
Was wanting to bump this since I'm in a similar situation, which is staying with the stock zsp springs. Approaching 60k miles on the original shocks and was looking at my options. Was thinking either Koni Yellows or Bilstein HDs, but not entirely sure.
6 or half dozen really. Sports are adjustable; HD's aren't.
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      08-28-2012, 01:52 PM   #9
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Quote:
Originally Posted by CrazyNole21 View Post
Check out Koni FSD shocks. Some members are running these w/H&R springs if you want to upgrade your springs too.
Not recommended by Koni
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      08-28-2012, 09:33 PM   #10
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Quote:
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Not recommended by Koni
FSD's are recommended for stock springs. OP uses his 330i as a family car -- seems ideal.
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      08-28-2012, 10:42 PM   #11
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Quote:
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FSD's are recommended for stock springs. OP uses his 330i as a family car -- seems ideal.
He's saying it's not recommended to use FSD's with H&R [Sports].
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      08-29-2012, 02:22 PM   #12
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So are FSDs "softer" than Yellows? I'm looking for a bit of a softer ride than OEM and FSD looks to be the choice as they will still maintain the handling of the car, but I'm a bit worried about the possibility of FSDs being unpredictable in certain situations.

And I'm still looking into the Bilstein HDs as an alernative. Haven't found too much information on them yet though.
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      08-30-2012, 11:34 PM   #13
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Yeah, may bad earlier. Did some research before dropping my E90 next week. Going with Koni Yellows and H&R (Sports) w/front Hotchkiss sway bar. If you want a softer ride, check out Bilsteins.
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      10-04-2012, 08:08 PM   #14
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I was one of the first people that jumped on the BMW Perf V1s when the price got stupid cheap- 133 bucks. Have had them for the past 40,000 miles. They tightened the car up substantially (they replaced 80k old dead sport struts).

If they are stil avail I would find them.

Plus I think heard they are bilsteins valved by bmw and painted black, so they should last a damn long time.
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      10-07-2012, 12:01 PM   #15
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I can chime in regarding the Koni Yellow/ OEM sport springs combo. Eckoj, your at a perfect time to update and improve your car's ride. On my car, the ride (on SF local roads) is more than comfortable and excellent control due to the ability to adjust the shock and struts absorbing rates.

The FSD model are very good, but are not adjustable which may be fine for your needs. But having driven my buddy's car (Jimmy or Jwong77), they offer very good comfort and automatically adjust themselves according the the road's frequency undulations. If you want to install and drive (do nothing else) approach, then FSD may be fine. If you want more personal control, then you should consider the color Yellow.

My last bit of info about my thoughts about my set-up. Since I wanted use my car at the track (Infineon raceway), I can firm up the shocks when I get to the track. One thing I will say about my set-up (ie: OEM sport springs) limitation compared to a full coil over spring set-up is dynamic transfer of weight shifts at the track. I help control this by positioning the sway bar's setting (UUC) to the stiffest setting. It's a compromised suspension set-up that allows me the daily driving performance I want and the comfort levels for my wife. Motto: happy wife, happy life.
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Last edited by Thumperx; 10-07-2012 at 12:16 PM.
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      10-09-2012, 04:15 PM   #16
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Quote:
Originally Posted by eckoj View Post

I just want to get some feedback or reviews from ppl who has replaced their oem shocks to aftermarket ones with stock zsp springs.( I like the height of the zsp springs, as it is a family car)
As a family car, comfort's important. I say: Koni FSD's

Designed for your stock springs, they handle potholes with aplomb. Yet, good handling.

That said I like my Yellows w/matched springs, not stock, fine - touch firmer, but w/few other mods, no end to grip. When running -2.5 front camber, corners remarkably like a Mercedes yet leaves all in the rear view.

Sweet but you don't want the tire wear - stick w/FSD's + stock alignment - you'll be smilin'....
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