CALMIN/Bilstein 6100 bolt in performance coil-overs for Nissan Frontier/Xterra/Pathfinder. These kits feature a 2.0" dia. coil-over shock, 4.5-5" of adjustable ride height lift, a "True Hydraulic full extension dampener", Nickel plated cylinders. They come pre Nitrogen charged ready to install in place of the factory coil-over shock. Fully bolt-in installation.