BMW BR Series Coilover Kit (Swift Spring Upgrade) - BC Racing I-12-BR

Elevate your driving experience with the **BC Racing BR Series Coilover Kit featuring the Swift Spring Upgrade**, specifically designed for the BMW Z4 (E85/E86) models from 2003-2008. This high-performance coilover system (Part Number: BCR-I12BR10K) delivers unparalleled handling, precise control, and an adjustable stance for both street and track enthusiasts.

The BR Series coilovers offer 30 levels of damping force adjustment, allowing you to fine-tune your ride from comfortable daily driving to aggressive track performance. Full ride height adjustment is easily achieved via the lower mount, maintaining optimal shock travel regardless of your desired drop.

The included Swift Spring upgrade sets this kit apart. Manufactured from high-tensile strength material, Swift springs are lighter, offer superior linearity, and provide increased usable stroke compared to standard springs. This results in quicker response, enhanced compliance over bumps, and a more consistent feel, drastically improving your Z4's cornering capabilities and overall ride quality.

Experience a transformation in your BMW Z4's dynamics with this premium coilover kit, engineered for enthusiasts demanding the best in suspension technology.