SM400 - High-tech automatically adjusting suspension kit
Add our rear lower shock and spring mount kit (below) if your car is over 5yrs/50K miles.
Add our rear upper shock mount kit (below) if you car is over 7yr/100K miles.
Call us for a quote if you want different springs or other optional items.
Rear Lower Mount Kit
If your BMW 3-series is over 5 years old and 50K miles, then you should replace the rear upper and lower spring mounts and rear lower shock mount. These items degrade over time and will negatively impact your suspension. Kit includes rear lower shock mounts and rear upper and lower spring mounts. Parts come from BMW or certified OEM supplier and are guaranteed to fit. Do it right the first time!
Rear Upper Mount Kit
If your BMW has over 100K miles, or is regularly subject to snow, salt, dirt, or poor road conditions, we recommend replacing the rear upper shock mount components. These wear out over time and negatively impact your suspension.We offer the entire kit for both sides of your car at one low price, and no additional shipping if you buy it with a kit. Do it right the first time!