Cusco Coilovers - Street Zero A: The Cusco Street Zero A coilover system is great for the every day automotive enthusiast looking for a suspension kit that offers great street manners at an affordable price. This system features a unique 40-way dampening adjustment for a wide range of adjustability, and Pillowball upper mounts combined with individually designed bump stops provide a comfortable ride for any daily driver.spension for people who love to drive fast but still want comfort.