The BC Racing BR Series Coilover Kit - I-45BR is a high-performance suspension upgrade for vehicles. It is designed to improve handling, cornering, and overall performance by allowing for adjustable ride height and damping settings. The kit includes high-quality coilovers with adjustable spring rates, as well as adjustable damping settings for both compression and rebound. This allows for a customizable and comfortable ride for both street and track use. The BC Racing BR Series Coilover Kit is a popular choice among car enthusiasts looking to upgrade their suspension for improved performance.