Street coilovers are designed for motoring enthusiasts seeking balanced handling and comfort.This suspension system is suitable for daily driving and light track use.Components are selected for product consistency and stability.Each application is test fitted and road tested to meet expected function and comfort standards. Features Advanced twin-tube technology provides sufficient stroke within the shock absorber. Full length adjustment allows vehicle lowering while maintaining spring tension. Independent spring tension adjustment enables custom stiffness without altering ride height. Pillow-ball front mount supports precise handling response. Fully anodized sleeves provide rust resistance. Compatibility Fits R50 (2002–2006, FWD) Fits S R53 (2002–2007, FWD) Fits S R53 Convertible (R52, 2004–2007, FWD) Specifications Front mount: Pillow ball Front spring rate: 6 kg/mm (336 lbs/in) Rear spring rate: 6 kg/mm (336 lbs/in) Coilover overall length – front: 375 mm – 465 mm Coilover overall length – rear: 405 mm – 465 mm Spring length – front: 180 mm Spring length – rear: 180 mm Adjustable height: Yes Shock type: Twin tube Spring preload: 7–10 mm Color: Package includes 1 set of coilover spring kit (2 front + 2 rear) 1 pair of wrenches for height adjustment This is an aftermarket spare.Brand and model mentions do not imply manufacturer association.