Precision machined, and anodized 2.5” aluminum body to resist corrosion for years to come Rust and rust resistant finish External reservoir with internal IPF piston allows separation of oil and gas, increasing shock absorber volume Mono-Tube design with additional moving piston provides excellent separation of oil from high-pressure compressed nitrogen Nitrile rubber bushings ensure quiet shock absorber operation Components CNC machined from 6061-T6 aluminum Black anodized components Chrome-plated 7/8” piston rod of heat-treated steel Engineered for motorsports with high oil flow piston Reliable triple seal system: main seal, piston rod seal, scraper seal High-tech JM92 oil for superior performance regardless of temperature