When first glancing through coilover kits you may be overwhelmed of the prices. A coilover combines a coil spring and shock absorber into one integrated assembly. The coil spring is seated around a specially designed shock housing that mounts in place where OEM coil springs would be. Like any spring, coilovers serve to support the weight of your E82/E88 (2004-2012) BMW. However, it is important to note that even though a coilover’s housing plays an integral role in supporting vehicle weight the same way a strut does, coilovers are not technically struts. Get yourself suspension parts here with Trinity Autosport. If you have any questions our expert staff will be able to help assist with any questions you have.