General description The Coilover Suspension Lowering Kit is designed for various Nissan and Infiniti models, providing an adjustable lowering feature that enhances the vehicle's stance and handling. This kit is suitable for the following models: Nissan 350Z Z33 Coupe (2003-2008), Nissan 350Z Roadster Z33 Convertible (2003-2008), Nissan Skyline Coupe (2003-2007), Infiniti G35 Coupe (2003-2007), and Infiniti G35 Sedan (2003-2006). Please note that it is not compatible with the G35X sedan. Technical specifications Height adjustable: Yes, lowering range 25-75mm (depending on vehicle model) Damping adjustable: Not available Top mounts: Pillow ball front and rear Camber adjustable: Not available Spring Rate Front: 12 kg/mm (672 lbs/in) Spring Rate Rear: 10 kg/mm (560 lbs/in) Front spring inner diameter: 62 mm Rear spring inner diameter: 62 mm Spring length Front: 200 mm Spring length Rear: 160 mm Spring Preload advised: 7-10 mm Package size: 71*51*21 cm Weight: 26200 g Installation