ICON VS 2.5 aluminum piggyback shocks with CDEV are a vehicle‑specific rear upgrade for 2021–2023 Ford F‑150 that blend off‑road control with street comfort. Piggyback reservoirs improve heat dissipation and shock consistency while the internal Bump Zone increases damping near full compression by about 20% to prevent harsh bottoming. CDEV offers electronic compression tuning via ICON Intelligent Control; these shocks are rebuildable and application‑tuned for lasting performance.
ICON 21-23 Ford F150 Rear 2.5 VS PB CDEV Pair