These rocker panels are the ones that were originally used on the Porsche 964 Turbo or 965. They are designed to fit 9" front fenders and 11" rear quarter panels (RSR or Turbo) and are priced and sold in pairs. They can also be used on early narrow body 911's (SC and Carrera) but the mounting positions under the car on a non 964 would need to be added. The "Shark Fin" on the back section can be cut straight to provide a different look. Average weight is 10lbs for the set of four pieces (Passenger and Driver).