G35 Rear Under Diffuser

I fabricated a rear under diffuser for the G35. Since my car has a single exit exhaust, there is a large empty space behind the rear bumper where the original factory exhaust was installed. This empty space would catch air and act as a parachute at high speeds, slightly slowing the car down. I cut a large section of the rear bumper off to allow for increased airflow, and fabricated the rear under diffuser to go from the rear cross member to the rear crash bar. This is the only picture I have of it, but I will take more pictures when I get a chance.