S-Tech Front and Rear Lowering Coil Spring Kit with 2″ Front and 1.2″ Rear Drop Height (SKA52-AUB00) by Tein®. Quantity: 4 per Pack. Spring Rate: 307 lbs/inch (Front), 196 lbs/inch (Rear). TEIN S.Tech Springs are an excellent step towards suspension tuning. They offer approximately a 1.5 inch drop for a more aggressive appearance and increased road holding capability. Designed to be used with OEM or OEM replacement shocks. Each application is road tested in North America for the proper balance between performance and comfort. Comes with a 1 year limited warranty, spring length is guaranteed not to sag more than 5mm, and be clear of any manufacturer defects.