BC Racing Height Adjustable Spring Kit & Camber for Porsche 991 992 Carrera RWDFront Lowering: 31mm Rear Lowering: 35mm Specially designed for vehicles equipped with electronic damping systems. Our ASP spring kits allow users to easily replace their stock springs with adjustable spring perches and lowering springs. The kits allow ride height to be custom set using the provided adjustable spring platform while retaining the use of the OEM adjustable electronic damping systems. The spring lengths and rates are designed to work in