22-Up Toyota Tundra Rear Performance Elite 2.5 Remote Reservoir Dual Speed Compression Adjuster 0-1.5 Inch Lift Offroad Shocks Fox FactoryFOX Performance Elite Series 2. 5 shocks improve the stock 3rd gen Tundra platform by eliminating the vehicle's forward rake, providing a level ride height, and increasing the suspension articulation of your truck. Type III anodization prevents corrosion and wear of the 2. 5 inch aluminum bodies. External Reservoirs increase oil capacity, remove dead space from the shock Body, and decrease the harshness associated with nitrogen ramp up. Cooler shock