What are coilovers and are they worth the money?
By using coarse threads on the outside body of the shock or a threaded sleeve, they can use a nut that is adjustable up and down the exterior of the shock. The base of the spring then rests on this nut, permitting you to raise and lower the base of the spring which changes the ride height. This makes the spring and shock a single unit rather than two separate units. With coilovers the spring rate selection is almost unlimited. When you compare the price of springs and premium shocks to coilovers, the price difference is usually not that great. The ride height adjustments and spring rate selection options will definitely be worth the price difference.