Cup kits, or Spring Kits are quite simply an upgraded spring added either to your existing suspension struts, or paired with an appropriate new strut for your application. These are considered the more basic upgrade as it retains most of the factory geometry of your suspension set, just with a performance added benefit like this H&R Spring kit for MK7’s!
Some benefits include a more responsive rebound stiffness, handling support, lower ride height and ease of installation at a lower cost!
The cons to a Cup Kit or Spring kit, is that you cannot control a lot of the adjustment. Most kits are just direct suspension replacements with no height adjustment, rebound stiffness or dampening. These are preset by the manufacturer with their spring and strut combination for your application! Shop for your Spring or Cup Kit here at UroTuning.com