This GT Racing 911 RSR Wide Body front bumper is designed to be used with 11" wide front fenders or RSR Wide Body vented fenders (GT Racing Part #30c). This bumper includes brake cooling ducts, provisions for turn signals and mounting hardware. Oil cooler opening is 23 1/2" x 6 1/8". Average weight is 10 lbs. Note: GT Racing also recommends buying the grill Part #43C.