Quick view MSS Suspension MSS 20-21 BMW X5M / X5M Competition / X6M / X6M Competition Urban Full Adjustable Kit - 05ABMWX56MSU Compare $2,110.00 $2,004.99 MSS is an award-winning adjustable modular suspension solution which has been developed and engineered for safety, comfort, and performance. They come with a lifetime warranty. The relatively low initial spring rate absorbs small bumps in the road,... Add to Cart Add to Cart