AC Autotechnic - Rear Bumper Diffuser 22" and 44"

The AC Autotechnic Bumper Diffuser, orginally developed as the STR D-Fuser, helps reduce drag by allowing air to pass through it, instead of swirling inside the rear bumper. This helps streamline the air current and increases trap speeds in Drag Competition. The AC Autotechnic Rear Bumper Diffuser is made from billet aluminum which is CNC Machined and is an excellent finishing touch for your car.

The AC Autotechnic Rear Bumper Diffuser two-piece version is intended for vehicles that have a license plate cut out in the rear bumper. A 44" one-piece version is available for cars with a license plates that are mounted in the trunk or rear hatch.