If you want to enjoy a convenient ride even under severe road conditions, these shock absorbers are perfect for you! Fox 2.0 Performance Coil-Over IFP Shocks come with metal impact extruded aluminum construction for better cooling capacity and resistance against corrosion. Plus, the IFP shocks come with a special Internal Floating Piston (IFP) mono-tube design that divides the shock oil from the high-pressure, nitrogen-charged gas chamber.