General description maXpeedingrods B3 coilovers are designed for Mazda MX-5 MK1 (NA) and MK2 (NB) models, providing height adjustability and 24-level rebound damping control for optimal ride quality on various road conditions. These coilovers enhance the vehicle's stance and performance, making them suitable for both street use and occasional track days. Technical specifications Height adjustable: Yes, lowering 25-75mm depending on vehicle model Damping adjustable: 24 levels of rebound damping force Spring Rate Front: 7 kg/mm (392 lbs/in) Spring Rate Rear: 6 kg/mm (336 lbs/in) Front spring inner diameter: 70.5 mm Rear spring inner diameter: 70.5 mm Spring length Front: 180 mm Spring length Rear: 160 mm Spring Preload advised: 7-10 mm Front top mount: Pillow ball Rear top mount: Pillow ball Camber adjustable: Not available Compatibility and accessories Compatible with Mazda MX-5 MK1 (NA) (09/1989-04/1998) Compatible with Mazda MX-5 MK2 (NB) (01/1998-10/2005) Package includes: 2x Front