General description The Coilovers Kits are designed specifically for Nissan 350Z Z33 Coupe (2003-2008), Nissan 350Z Roadster Z33 Convertible (2003-2008), Nissan Skyline Coupe (2003-2007), and Infiniti G35 models (2003-2007). This kit allows for significant lowering of your vehicle, enhancing its aggressive stance and improving handling performance. Technical specifications Height adjustable: Yes, lowering 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 All modifications must be installed by licensed mechanics and in compliance with local modification regulations. Ensure all components are tightened with