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E90/E91/E92/E93 (2006 - 2013)
The E9X is the 4th evolution of the BMW 3 series including a highly tuned twin turbo 335i variant pushing out 300hp and 300 ft. lbs. of torque. BMW continues to show that it sets the bar for true driving performance! -- View the E9X Wiki

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  #1  
Old 04-18-2014, 08:00 PM
zgcar zgcar is offline
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Location: NYC
 
Join Date: Apr 2014
Posts: 2
Mein Auto: BMW 325xi
Question E91 - suspension improvements

Have an 06 E91 sport wagon that has all the ride problems that have been mentioned in previous posts (bad on rough roads, almost intolerable in nyc). I am wondering what people have done to resolve these issues. Thus far I have gotten rid of the RF tires which has helped quite a bit, but am going to be spending more time in NYC and am looking for more. Wondering if there is any insight/experience about following:
1. wheels
2. springs (not necessarily lower but possibly stronger or updated oem)
3. shocks (blisten hd seem like a good bet but what are people using)
4. coil over
5. air ride (not sure if it is even possible
6. other?

looking for what is best to concentrate on. Want to make the ride more manageable on what passes for roads in nyc. Thoughts welcome, experience ideal
Thanks
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  #2  
Old 04-19-2014, 06:41 AM
fdriller9 fdriller9 is online now
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Mein Auto: '06 AW 330xi
First of all, cars mileage?

Second, your goals? Performance? Comfort? Little of both?

Budget?
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  #3  
Old 04-19-2014, 07:40 AM
zgcar zgcar is offline
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Location: NYC
 
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Mein Auto: BMW 325xi
thanks for reply

car has ~50k miles with 1.5 yrs left on extended warranty

most important goal would be comfort. if performance comes with it great if i loose a small amount not a huge deal. not looking to end up with a cadillac but if I give up very small amount of performance for city driving comfort I am ok with that.

looking for the most bang for the buck. I like the car but if we are talking tons of money I can dump the car and go another direction.
I guess 2-4k wouldn't be horrible if it would give me a ride i can tolerate in nyc. much more and it is probably not worth it.

thanks
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  #4  
Old 04-19-2014, 04:14 PM
dmatre dmatre is offline
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Mein Auto: 2011 E90 328i
If comfort is your goal, pass on the Bilsteins. They are harsher than most.

Best choice would likely be to go to Koni FSDs, which have good reviews.

Next option would be to go -1 in wheel/tire setup. This would put that much more rubber/air between you and the broken asphalt.


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  #5  
Old 04-19-2014, 08:41 PM
ArcticGrey94 ArcticGrey94 is offline
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Location: Las Vegas,NV USA
 
Join Date: Apr 2014
Posts: 77
Mein Auto: '12 Alpinweiss 335i e93
Do you have the 17" or 18" wheels? If they are 17's I think your good there as far as sidewall height. If you go with an all season tire instead of summer tires that will likely help ride quality. Your shocks are maybe still ok but a new set of oem sachs should bring the feel back to close to new. I've read a lot of posts about the quality of roads in NYC and Jersey. I go back to Indy every year or so and their roads have tanked pretty bad since I was a kid. Between the road salt, snow plows and just lack of maint due to many cities lack of funds, it can make for a bumpy, slam bang kinda drive. I have 17's w/ all season runflats on mine now coming from 18's w/ summer bridgestone rft's and though the ride is BMW it's not what my last car was as far as handling. Very close though. I'm having Eibachs and Koni yellows put on on Monday and my silver style 199 tire/wheel pkg from Tischer will be here Fri. I couldn't do 19's and summer rft's in naptown that's for sure. Vegas roads are for the most part not bad. A few roads on the eastside have some frikkin' sinkholes that will make you wish you had a 4x4 at that moment. I'm no expert but thought I'd share. Best of luck in negotiating the minefield that I hear are the Big Apple's roads.
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Current BMW: '12 Alpinweiss 335i e93 premium. K&N filter, Dinan exhaust, Silver 199's, Eibach springs, Koni yellows.

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  #6  
Old 04-19-2014, 09:02 PM
fdriller9 fdriller9 is online now
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Mein Auto: '06 AW 330xi
Quote:
Originally Posted by dmatre View Post
If comfort is your goal, pass on the Bilsteins. They are harsher than most.

Best choice would likely be to go to Koni FSDs, which have good reviews.

Next option would be to go -1 in wheel/tire setup. This would put that much more rubber/air between you and the broken asphalt.


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I was going to reply with the same.

Koni yellows and Bilstein HDs are more harsh compared to the OEM setup.

The FSDs give a comfortable ride but can also improve performance in aggressive driving.

FSDs and lowering spring should run you about $900-$1000 for parts. Another $200 to $300 for install.
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Last edited by fdriller9; 04-19-2014 at 09:03 PM.
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