Bilstein B4 OE Replacement Suspension Strut Assembly for 2021 BMW M440i xDrive Diffusers And Vortex Generators a trusted OE supplier for

a trusted OE supplier for European vehicles

aggressive look that complements the vehicle’s design

The lip is designed specifically for the F8X series

with a focus on durability

making this an accessible upgrade for both DIY enthusiasts and professional mechanics

Bilstein B4 OE Replacement Suspension Strut Assembly for 2021 BMW M440i xDrive Diffusers And Vortex Generators a trusted OE supplier forBilstein 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.