These rocker panels are the ones that were originally used on the narrow body Porsche 964. They are designed to fit stock front fenders and quarter panels and are priced and sold in pairs. They can be used on early narrow body 911's (SC and Carrera) but the mounting positions on a non 964 would need to be added under the car for the 964 mounting tabs. The "Shark Fin" on the back section can be cut straight to provide a different look.