This bumper is designed to be used with 9" front fenders (Bexco Automotive Part #30B). The oil cooler opening is 23 1/2" x 6 1/8" and brake cooling ducts, splitter, and provisions for lights are built in. Includes mounting hardware. Average weight is 9 lbs. Note: Bexco Automotive also recommends buying the grill (part #43C). Call for carbon fiber prices.