Rear bumper diffuser allows air to travel through the rear bumper reducing wind drag while adding a custom look. CNC machined from 1/8″ 6063 aluminum which is softer allowing the diffuser to bend to the contours of your rear bumper. Measuring 3.5″ tall by 12″ long, standard finish is a brushed aluminum look. SS hardware is included. These are sold individually and will require you to cut your rear bumper.