Daystar was the first to enter the Leveling Kit market in 1995. Though there have been many companies that have entered the market since, Daystars Leveling Kits offer many advantages that the others cannot claim. For example, Daystar uses Polyurethane material in its leveling kits for a reason: Its an insulator. It absorbs the noise, vibration, and harmonics (NVH) that come from the suspension and avoids transmitting them to the passenger compartment. All competitors use steel or aluminum in their leveling kits. If you were to take apart any factory suspension, you are going to find rubber, polyurethane, and often both in a typical suspension. These pieces are there for a reason; they absorb the NVH. All of Daystar. All of the leveling kits are manufactured at the plant located in Phoenix, Arizona. The products are ISO9001 certified. All of the kits also feature a top-mount easy-install design. Most of Daystars strut applications are a top-mount design, meaning that the components bolt to the top of the factory strut assembly. This type of leveling kit does not preload the factory coil spring, so factory ride quality is maintained, and installation requires only simple hand tools. Daystar leveling kits work within the factory suspension design, meaning that Daystar works within the factorys design parameters to achieve an increase in ride height that levels the stance of the vehicle. Everything needed is included in the kit. Daystar leveling kits include only front lift components to level the stance of the vehicle.