H&R Sport Spring Kit | BMW Z4 (03-08) (50421) YMM_1997_2003_Toyota_Sienna_I_XL10 Optimized for vehicle stability and

Optimized for vehicle stability and improved center of gravity for better control

Precision-wound coils using Wafios machinery for uniformity and quality control

The high-friction compound is formulated to provide a predictable and linear brake feel

Its key features include: OE-grade materials for durability and reliability

H&R Sport Spring Kit | BMW Z4 (03-08) (50421) YMM_1997_2003_Toyota_Sienna_I_XL10 Optimized for vehicle stability andH&R Sport Spring Kit BMW Z4 (03 08) Fitment Part #: 50421 Overview The H&R Sport Spring Kit is designed to enhance the handling and aesthetics of your BMW Z4 from 2003 to 2008. This suspension upgrade lowers the vehicle's center of gravity, improving cornering stability and overall ride quality. Crafted for enthusiasts seeking a sportier stance and improved responsiveness, these springs provide a balanced combination of performance and comfort.