General description Performance Coilovers Suspension designed for Lexus IS300, IS200, Toyota Mark II, and Altezza models. This suspension system enhances vehicle handling and aesthetics by allowing for adjustable height and damping settings. Technical specifications Height adjustable: Yes, lowering 25-75mm depending on vehicle models Damping adjustable: 24 levels of rebound damping force Spring rate Front: 12 kg/mm (672 lbs/in) Spring rate Rear: 10 kg/mm (560 lbs/in) Front spring inner diameter: 70.5 mm Rear spring inner diameter: 70.5 mm Spring length Front: 230 mm Spring length Rear: 230 mm Shock type: Twin tube Spring preload: 7-10 mm Quantity: 2 x Front Coilover, 2 x Rear Coilover, 2 x C Spanners Installation All modifications must be installed by licensed mechanics and in compliance with local modification regulations. Ensure all components are tightened with correct torque specifications before and after installation. Impact wrench is prohibited during installation to avoid