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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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Old 09-26-2013, 10:56 AM
patmo335 patmo335 is offline
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Location: Tennessee
 
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Mein Auto: 2009 335i
Sway Bar Bushing

I have a 2009 335I E92 coupe with auto tranny and sport package. I want to upgrade the sway bar bushings where the bars attach to the body. Short of getting under the car with a micrometer, which I don't have, is there a way to find the stock diameter of both the front and rear bars. I think the front bar is 26.5 mm and the rear is 13 mm, but I need to confirm the exact size before I order the bushings.

Also, I don't want to stiffen the ride with urethane, but there is a mid range bushing between stock and urethane at Bavarian Autosport called Stage 1 Upgrade heavy duty rubber. This car will never go on a track or race, but I want enhance the handling just a little and not compromise the ride.

Does anybody have any experience with these bushings, or have any recommendations?
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Old 09-26-2013, 11:57 AM
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thekurgan thekurgan is online now
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Mein Auto: S65B40 Powered
powerflex has some, they may list the dimensions on their site.

http://powerflexusa.com/
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Old 09-26-2013, 12:47 PM
hondo402000 hondo402000 is offline
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question is will you be able to tell any difference
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Old 09-26-2013, 01:10 PM
patmo335 patmo335 is offline
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That is a big question! I talked to Powerflex, and they tell me I'll gain a small noticeable improvement in cornering, but no change in ride quality. For $65 per bar, I don't think it's too big of an investment not to give it a shot!
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