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      08-27-2010, 03:10 PM   #18
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Drives: 335i e91 LCI msport
Join Date: Jul 2007
Location: Lincolnshire

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Quote:
Originally Posted by Butch View Post
I'm concerned about the ride quality.
The msport springs wouldn't be as harsh (I presume?) as they are not as low, but not sure how much oem msport springs are - anybody know the price just for parts?
Butch - the spring rate of the Eibachs are very similar to standard msport springs.

The Eibach springs have a progressive rate, meaning that they start off similar to OEM springs (say for the first 50% of travel), then the more compressed they become the stiffer they become - this is to compensate for the reduced range of travel compared to OEM springs.

OEM springs have a linear spring rate meaning that they maintain a similar stiffness throughout the whole of their range of travel.
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