Packed With 35 Years Of Race Winning Technology. Performance Tuned For Vehicle Specific Application. Aluminum Body Dissipates Heat Faster Than Steel. IFP Separates Oil From High-Pressure Nitrogen Gas. Black Anodized CNC Machined Aluminum Components. Compatible with/Replacement for Fox Racing Oil Developed For Ultimate Performance. Large Heavy-Duty Hard Chrome 5/8 Inch Shaft. Hour Glass Bushings Allow Increased Articulation.