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Koni Yellow/Eibach Pro on Xi - Jittery rear axle
Hi Guys ~ Need some help here.
Just upgraded my '11 335xi to Koni Yellow/Eibach pro. The handling is great but the back-end seems to shift when I drive over an uneven surface e.g. manhole cover, potholes, cracks, etc. For example, drive over manhole cover on passenger side, rear of the car shimmies left then back to the right. Same on the driver side but not as prevalent. It feels like the body is moving, as the wheel/tire are planted to the road. The car was aligned by the installer after the upgrade. My local BMW dealership has also checked out the install and reported everything to be tight and realigned the car (again) in trying to resolve the issue, but it's still there. The car is riding on 18" staggered Michelin PSS RFT.
Any thoughts or suggestions would be greatly appreciated. Thanks!
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