This bumper is designed to be used for stock '74-on 911, SC, or Carrera with stock fenders. The bumper has an oil cooler opening of 23 1/2" x 6 1/8", brake cooling ducts, provisions for lights and built in splitter. Mounting hardware is included. Fits Bexco Automotive fenders, (part #30). Average weight is 10 lbs. Note: Bexco Automotive also recommends buying the grill (part #43C). Call for carbon fiber prices.