This GT Racing Porsche 911 RSR Wide Body front bumper is designed to be used with 11" wide front fenders. The oil cooler opening is 23 1/2" x 6 1/8" and comes with brake cooling ducts and built in splitter. Mounting hardware is included. Note: no provisions for lights. Fits GT Racing wide fenders Part #s 30c and 30W. Average weight is 9 lbs. GT Racing also recommends buying the grill (part #43C) and the additional splitter (Part #44C). Call for carbon fiber pricing.