CLUB PERFORMANCE coilovers feature separate settings for adjusting shock compression and rebound and full-length ride height adjustment. This suspension system is ideal for all automotive enthusiasts who want excellent handling when participating in casual tracks, weekend races, club tracks or less aggressive road racing, but also want adjustable shock settings for everyday driving without sacrifice ride comfort. With an external reservoir, this system allows for increased oil capacity for superior heat dissipation, allowing you to run this product for a long period of time and improving performance and handling.