MR Adujstable Coilovers Nissan 240sx 89-94. MR Coilover Damper Kits offer 32 Levels damping force adjustment, full-Length adjustment and also match with front and rear Pillow Ball upper mounts. Spring rates: 8kg Front and 6kg Rear - Same Coilovers as used on the Professional Formula Drift Team Enjuku Cars in 2005.