The Performance Series 2.0 IFP smooth Body shocks contain the latest in shock technology to transform the performance of your Truck or SUV. They use our race-proven damping control to provide a comfortable on-road ride and predictable off-road handling in even the toughest conditions. The precision metal impact aluminum Body increases cooling capacity and will never rust. Inside you will find our race-proven performance Valving technology. Our Internal Floating Piston (IFP) mono-tube design separates the shock oil from the high-pressure, nitrogen-charged gas chamber. The IFP eliminates oil aeration allowing maximum performance from the factory-tuned precision Valving. The race developed high flow damping Piston matched with application specific Valving provides the Performance Series 2.0 IFP shock a predicable ride quality capable of handling the roughest road conditions. Features 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 Series Performance Travel 8.62 Front Lift Height 0-1 Body 2.0 inch Impact extruded and CNC machined 6061-T6 clear anodized aluminum one-piece Body resists rust over time Body Plating Clear-anodized for a durable finish Components Black-anodized, CNC-machined 6061-T6 billet aluminum Shaft 5/8 Inch hard chrome plated heat-treated alloy steel Piston Race-developed high-flow Piston design Valving Application specific Valving to maximize performance Seals Redundant sealing pack system main seal, wiper seal, scraper seal Extended Length 23.27 Compressed Length 14.65 Top Mount SM3 Bottom Mount ES3