Eibach PRO-UTV Spring Systems unlock the maximum potential of your factory coilover suspension, increasing ground clearance, reducing buck, and maximizing control over g-outs and rough terrain. The PRO-UTV Stage 4 HD Performance Kit is designed to increase performance on 2-Seaters with two riders and 4-Seaters with four riders and 300+ lbs of additional weight. True Dual-Spring Set Up - Includes Springs, Sliders, Stop Rings and Setup instructions for easy installation. Engineered and Tested FOR Enthusiasts - BY Professionals for Maximum Performance on any Terrain. Race Proven Durability, Quality and Repeatability you can rely on. Made By Eibach in the U.S.A. Lifetime Warranty Note: Stage 4 (EXTRA LOAD) kit for OE Fox Smart Shox Fits vehicles with 2.5" front smart shocks, and 3.0" rear smart shocks. Note: We do not guarantee fitment, height or warranties on unlisted applications.