The BC Racing DS Series is a coilover system designed for dual-purpose street and track use. The DS Series features a unique piston design, which allows for increased low-speed dampening and a more comfortable ride on the street while still providing high-performance handling on the track. The shocks are fully adjustable, with 30 levels of dampening, allowing for a customizable ride experience. Other unique features of the BC Racing DS Series include: Monotube design for better response and less fade Aluminum pillowball mounts, which reduce weight and offer a more direct and responsive steering feel Camber plates, which allow for additional camber adjustment for those who are seeking more aggressive alignment settings Cold-bent springs made from high-tensile steel, which are durable and resistant to sagging Customizable spring rates to match the driver's specific needs and driving style Pros of the BC Racing DS Series include: Excellent handling and performance capabilities on both the street and the track Customizable ride experience with adjustable dampening and spring rates High-quality components and materials, including aluminum pillowball mounts and cold-bent springs Reasonably priced compared to other high-end suspension systems Cons of the BC Racing DS Series include: May not provide the same level of performance as the RM Series for dedicated track use Stiffer ride quality than some other dual-purpose suspension systems Requires professional installation for optimal performance