ApplicationCompatible for Nissan S13 Silva Japan Market 89-93 compatible for Nissan S13 180SX Japan Market 89-98 compatible for Nissan S13 Sileighty Japan Market 98 compatible for Nissan S13 200SX Europe/New Zealand Market 89-94 compatible for Nissan S13 240SX North America 89-90Specificationdaily driver, occasional autocross day or occasional track days.Product included: complete coilovers 2 front and 2 rear a pair wrench for height adjustment .Top mounts: standard rubber top mount front and rear.Spring rate: front: 8kg/mm(448lbs/in) ;Rear: 7 kg/mm (392lbs/in).Adjustable height: Yes loweing 1\'\' to 3\'\'.Shock type: Twin tube.Spring Preload: 7-10 mm.Color : blueWarranty: one year.Gross weight: 23.68kgPackage size: 63*51*21cmFeature- Able to lower ride height by 1\'\'-3\'\'; allows user to have a more aggressive stance.- The user can enjoy a comfortable riding experience in all road conditions.- Pillow ball top mount -- this design helps combat noise while tuning. It also improves the steering feel and response- Twin-Tube Shock design is used for low internal frictional resistance in order to increase efficiency and keep shock temps low.- Height adjustment does not sacrifice damper stroke length.- These coilovers are able to have their height adjusted without being taken out of the car.- High Tensile strength performance spring---Tested under a 600,000 time continuous compression test, the spring distortion was less than 0.04%. Plus, the special surface treatment improves the durability and performance.- Adjustment tools included in the kit.NotePlease check your car information before purchase. If you are not sure, please contact us for help！No drilling, cutting, or modification necessary.SPECIAL NOTES: Prior to installation, verify all hardware and properly tighten.