The RSS Seat Base Kit for Recaro Seats is designed to work with Recaro universal sliders and uprights, allows for lower seating position than the factory GT2 seats and will also fit RSS Aluminum side mounts. Bolts to factory Seat Mounting Points with no modifications necessary. Fits the following Porsche models: 1980-2012 911, 2005-2012 Boxster, 2000-2012 Carrera GT, and 1998-2012 Cayman.