JEEP WRANGLER 2018+ JL FOX PERFORMANCE SERIES 2.5 HTO SHOCKS ( SET OF 4 - 2 FRONT, 2 REAR ) FRONT 2.5 PERFORMANCE SERIES HTO 2 x 987-24-012 2-3" JL DIRECT BOLT IN 17.50 COMPRESSED 26.82 EXTENDED REAR 2.5 PERFORMANCE SERIES HTO 2 x 987-24-013 2-3" JL DIRECT BOLT IN 19.04 COMPRESSED 29.72 EXTENDED FOX 2.5 Performance Series HTO shock is a bolt-on shock loaded with position-sensitive technology, vehicle-specific valving, and larger pistons to improve on and off-road performance. A type II anodized aluminum body efficiently dissipates heat and prevents corrosion. The 2.5-inch shock body features an internal floating piston (IFP) to separate the shock oil from the high-pressure nitrogen, optimizing damping. Hydraulic Top Out (HTO) technology offers usable position-sensitive rebound damping control on and off the pavement. HTO reduces harsh top-outs and increases comfort by forcing shock oil through a secondary shim stack to slow down shock shaft speed; HTO is particularly beneficial after installing heavier, aggressive tires and applications lifted higher than OEM specification. Bolt-on 2.5 Performance Series HTO shocks to increase damping capacity and ride in comfort with position-sensitive rebound control.