Bilstein B4 OE Replacement Suspension Strut Assembly for 2021 BMW M440i xDrive Diffusers And Vortex Generators with a focus on durability

with a focus on durability

it offers a reliable upgrade over stock components

Designed for enthusiasts who want to add a touch of sophistication and performance-inspired aesthetics

OEM-style Euro aesthetic

The lip is designed specifically for the F8X series

Bilstein B4 OE Replacement Suspension Strut Assembly for 2021 BMW M440i xDrive Diffusers And Vortex Generators with a focus on durabilityBilstein 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.