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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Technical Forums > All-Wheel-Drive (Xi / xDrive) Talk > Correct ZSP Springs on e90xi



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      06-14-2013, 09:15 AM   #1
500e
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Correct ZSP Springs on e90xi

Hi - all

I was and still might install eibachs on my car but I am conflicted, and think getting the zsp springs may be a better idea. Can anyone tell me what sport zsp springs to use on a 2008 335xi sedan automatic tranny? Aswell as the amount of drop to expect?

thanks!
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      06-14-2013, 09:18 AM   #2
500e
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Also while I'm at it will the OEM 335i sport struts/shocks fit as well? If so what are the part numbers?
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      06-14-2013, 10:55 AM   #3
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The struts are different on the 'I' VS the XI so you will need XI specific struts. However lots of XI guys use the 'I' eibach springs so the 'I' ZSP springs should also work on the XI.
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      06-14-2013, 11:02 AM   #4
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I actually bought the Eibachs but I am affraid on an Xi due to the higher weight it will lower the car more than I want.
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      06-15-2013, 03:26 PM   #5
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Quote:
Originally Posted by 500e View Post
I actually bought the Eibachs but I am affraid on an Xi due to the higher weight it will lower the car more than I want.
Um, if you look at the many 335XIs on the site that use the eibach springs (including my own 335xi sedan) you will see the lowering height is the same on the i and XI models.

'Too Low' is subjective to each owner.
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      06-15-2013, 05:28 PM   #6
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I lowered it with Eibachs and the front sits perfectly. The rear wheel gap is slightly low. About half inch. Wondering if its possible to raise it from the rear without sacrificing anything?
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      06-21-2013, 01:11 PM   #7
critical05
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If I remember correctly, there have been forums members who have fitted OEM 335i ZSP springs on their XI and got no drop at all. They ended up swapping them out for an aftermarket lowering spring.
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      06-26-2013, 06:16 PM   #8
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Quote:
Originally Posted by 500e View Post
I actually bought the Eibachs but I am affraid on an Xi due to the higher weight it will lower the car more than I want.
Im still waiting on a kit from Eibach for the 335xi sedan.

You did like the front height but how is the handling, stiff or like OEM?
The 330xi sedan kit or maybe the 335xi touring kit can fit better than the I ?

What is the exact number of the kit you have installed?
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      07-10-2013, 02:34 PM   #9
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Quote:
Originally Posted by Mankan View Post
Im still waiting on a kit from Eibach for the 335xi sedan.

You did like the front height but how is the handling, stiff or like OEM?
The 330xi sedan kit or maybe the 335xi touring kit can fit better than the I ?

What is the exact number of the kit you have installed?
I dont remember the exact p# but i got the Eibach springs for a 335i sedan. The ride is fine, it handles well, on small bumps the car is fine but when it hits slightly larger bumps OMG the car explodes. It sounds and feels like the car smashed into the ground. I dont know why this is happeneing, maybe its normal? But I installed the smaller bump stops in the front and back to try avoiding this. Maybe its the shocks, I am running the OEM shocks.
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      07-10-2013, 03:27 PM   #10
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Quote:
Originally Posted by 500e View Post
I dont remember the exact p# but i got the Eibach springs for a 335i sedan. The ride is fine, it handles well, on small bumps the car is fine but when it hits slightly larger bumps OMG the car explodes. It sounds and feels like the car smashed into the ground. I dont know why this is happeneing, maybe its normal? But I installed the smaller bump stops in the front and back to try avoiding this. Maybe its the shocks, I am running the OEM shocks.
As previously discussed, the OEM struts/shocks are probably hitting the (shorter) bumpstops on the larger bumps. To resolve this, you should look into swapping out to corresponding shorter travel (sport) struts/shocks to match the shorter springs.

Scroll down this thread for some options
http://www.e90post.com/forums/showthread.php?t=861778

Good luck!
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