The BC Racing BR Series Coilover Kit - I49BR is a high-performance suspension upgrade for vehicles. It features a fully adjustable design, allowing for precise tuning of the vehicle's ride height, compression, and rebound. The kit includes a set of four coilovers, each with a mono-tube design and 30 levels of dampening adjustment. The coilovers are made with high-quality materials and are designed to improve handling, stability, and overall performance of the vehicle. This kit is suitable for street, track, and drift use, making it a versatile option for any driving style.