A known weak point on all 3 series and 3 series based vehicles is the rear upper shock mounting location. Whether you use OE suspension, or upgraded, this problem can be ugly.
For whatever reason, this shock mount is something BMW never got right: the OEM mounts are sloppy and fatigue quickly, the area around them can be deformed over time simply by absorbing road irregularities, especially if you have upgraded suspension or an ///M car.

Here we have a comprehensive solution- Many companies make an upper shock mount, but we use and sell what we believe are the best performing you will find.
Structural improvement and quality in this set is dramatically better next to uprated OEM or "repair shop" replacements marketed as "high performance".
These mounts have tuned durometer (firmness) rubber shock rod mounts that are stiff enough to let the damper properly perform while maintaining a quiet, controlled ride. They now also include shock tower reinforcement plates, a $30 value, for free.

The best we have found for all around performance: friendly on the street, responsive enough for the track.
A must have when doing ANY rear suspension upgrade, these will save you time, money, and help save your chassis.

-Full race mono-ball style available below-

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