Tein H-Tech springs are an excellent step towards suspension tuning. They are made with Vanadium, a new lightweight/durable material. Comes with a 1 year limited warranty. Spring length is guaranteed not to sag more than 5mm and to be clear of any manufacture defects (see limited warranty for more details).One year limited warranty.Includes rubber spring protector sheet to prevent noise (most applications).Front Spring Rate: 173lbFront Ride Height: -1.2 inchesRear Spring Rate: 168lbRear Ride Height: -1.5 inches