BC Racing BR Series Coilovers (True Rear) for the 2009-2020 Nissan 370Z (Z34) are the perfect set up for lowering your car and increasing performance. The BR Series coilovers are built for driving your car on the street and occasional road course duty. Easily accessible adjustment knobs allow for fine tuning your suspension's compression and rebound through 30 levels of damping. Want to go lower Simply adjust your vehicle's ride height through the shock body. Choose how low or high you want your vehicle's no preset ride height here, and BC Racing's patented concave lower locking ring keeps it locked in place. All BC Coilovers come with pillowball mounts to provide the most feedback possible from your suspension and to sharpen your steering response. Available front and rear camber plates also allow you to get the perfect alignment setup without compromise. All this while providing a strong, reliable, and attractive coilover system at an affordable price. Spring Rates: Front: 10K Rear: 5K Camber Plates: Front: Not applicable Rear: Not applicable