The Eibach XT Barrel Spring (Extreme Travel) optimizes suspension travel with a 100 lbs/in rate. Measuring 6.00 inches long with a 2.50-inch inner diameter and 2.24-inch block height, this single high-tensile steel spring is designed for universal coilover systems. Ideal for off-road or race setups, it ensures smooth response. Professional installation and tuning are required. Powder-coated for durability, it includes a limited lifetime manufacturer warranty.