Specifications: Quantity: 2 pieces front + 2 pieces rear Spring rate Front: 12kg/mm (672lbs/in) Spring rate Rear: 10kg/mm (560lbs/in) Adjustable height: Yes Adjustable pre-load spring tension: Yes Adjustable camber plate: Yes Adjustable Damper force: No Fitment: Fit for Lexus IS300 (USA, for JDM rs200) 2001-2005 For Toyota ALTEZZA RS 200 Type-rs 2001-2005 Notes: 1. No instruction included. 2. We highly recommend professional installation by a competent mechanic. 3. Fully rebuildable with all parts available for purchase if out of warranty. 4. We highly recommend that you do a four-wheel alignment after you modify the suspension of your car, otherwise your tires can wear unevenly and wear out sooner than expected.