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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Technical Forums > Suspension | Brakes | Chassis > Non-Sport Swap to Sport ZSP? Sway Bars?



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      03-21-2009, 07:03 PM   #1
DimSum
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Non-Sport Swap to Sport ZSP? Sway Bars?

Do I have to swap sway bars in my Non-Sport car in order to bolt up a 335i Sport ZSP suspension?

I am planning of getting a used E92 Sport Suspension and mounting it on my Non-Sport 323i sedan. The suspension does not include sway bars.

Can anyone give me some input into this setup? Will I run into any problems?
Thanks in advance
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      03-22-2009, 12:16 AM   #2
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The ZSP front sway is slightly different than yours and the rear ZSP sway is the same as yours--so no, you don't have to change out the front.
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      03-22-2009, 12:24 AM   #3
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Quote:
Originally Posted by Mr. 5 View Post
The front is slightly different and the rear is the same--so no, you don't have to change out the front.
So let me get this correct, I can bolt on the ZSP Sport Suspension on the Non-Sport sway bars correct?

Also, there is a difference in the Sport Suspension compared to the Non-Sport Suspension? Or is only the sway bars different?

The ZSP Sport will sit lower than my Non-Sport, no?
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      03-22-2009, 12:30 AM   #4
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edited my post.
The ZSP suspension is different and your car should sit lower and be firmer.
You just don't have to upgrade the sways if you don't want.
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      03-23-2009, 01:41 AM   #5
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Perfect. Thats what I needed to know, thanks Mr.5!
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      03-23-2009, 11:21 AM   #6
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yes, I did the same upgrade on my non-sport and was able to re-use the non-sport sway bars. Also, ride height will be affected by which sport spring you get. a 335i weighs more than a 323 or 325, so you won't get as much lowering at the front with 335i sport springs compared to 325i sport springs. The rear might still get lower though.

This is my experience with E92 335i sport springs/shocks on 325 E90.
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      03-23-2009, 01:17 PM   #7
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Quote:
Originally Posted by mike-y View Post
yes, I did the same upgrade on my non-sport and was able to re-use the non-sport sway bars. Also, ride height will be affected by which sport spring you get. a 335i weighs more than a 323 or 325, so you won't get as much lowering at the front with 335i sport springs compared to 325i sport springs. The rear might still get lower though.

This is my experience with E92 335i sport springs/shocks on 325 E90.
So would it be okay, if I bought a set of H&R Sport Springs and installed them on the 335i ZSP Sport suspension?

I want to get this done all at once, so I can save in the installation $.
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      03-23-2009, 01:39 PM   #8
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yes, it should fit fine.
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      03-23-2009, 01:51 PM   #9
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Okay so say I want to get a set of TEIN S-Tech Springs, would I be getting them for the the 335i fitment or for my own car (323,325)? I am going to be installing them on the Sport ZSP 335i suspension I just purchased.
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      04-28-2009, 03:41 PM   #10
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Anyone?
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