Bilstein B4 OE Replacement Suspension Strut Assembly for 2021 BMW M440i xDrive missingapp Electronic valve actuators that enable

Electronic valve actuators that enable quick and reliable switching between sound modes for a customizable exhaust note

OE-grade construction with high-quality steel components for durability and longevity

these rear extensions deliver a striking visual impact combined with long-lasting durability

finished with a clear gloss coating that enhances its visual appeal and provides additional protection against UV rays and minor impacts

this front lip provides a refined touch that enhances your vehicle’s overall look and performance

Bilstein B4 OE Replacement Suspension Strut Assembly for 2021 BMW M440i xDrive missingapp Electronic valve actuators that enableBilstein B4 OE Replacement Suspension Strut Assembly 2021 BMW M440i xDrive Part #: 22 306623 Overview The Bilstein B4 OE Replacement Suspension Strut Assembly is designed specifically for the 2021 BMW M440i xDrive, offering a perfect balance of factory like ride quality and reliable performance. Engineered to meet or exceed original equipment standards, these struts restore your vehicle's handling, comfort, and safety to factory specifications.