Upgrade your suspension with the Bilstein B3 Rear Coil Spring, designed specifically for the BMW X3 Series from 2004 to 2010. This OE Replacement coil spring is engineered to match the original specifications of your vehicle, ensuring optimal performance and safety. Bilstein's commitment to quality means that you are restoring your vehicle's suspension system to its factory condition, enhancing both handling and ride comfort. The Bilstein B3 coil spring is manufactured to meet all original equipment dimensions and spring rates, making it a reliable choice for your BMW. With this replacement, you can expect improved stability and control while driving. Invest in your vehicle's performance and safety with the Bilstein B3 Rear Coil Spring, a trusted solution for your BMW X3 suspension needs. <b>Features:</b> * OE Replacement: Designed to match original equipment specifications: OE Replacement: Designed to match original equipment specifications * Improved Safety: Restores suspension system function to factory standards: Improved Safety: Restores suspension system function to factory standards * Enhanced Performance: Provides better handling and ride comfort: Enhanced Performance: Provides better handling and ride comfort