Bilstein B4 OE Replacement Suspension Strut Assembly for 2021 BMW M440i xDrive Diffusers And Vortex Generators allowing you to adjust sound

allowing you to adjust sound settings conveniently from inside or outside the vehicle

They are perfect for those who want to add a touch of sportiness and sophistication to their G20 Sedan

it offers a reliable upgrade over stock components

aggressive look that complements the vehicle’s design

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 allowing you to adjust soundBilstein 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.