These Duraflex GT1 hood vents are great for Nissan 350Z owners from 2003 - 2006 who want to upgrade their car's look and performance. Use them when you're looking to improve your vehicle's style or enhance its airflow. The vents are made of FRP, a material that is both light and strong. While the exact size and weight aren't specified, they are designed to fit perfectly on your 2003 - 2006 Nissan 350Z.