Upgrade your 2001-2004 C5 with this LS1 Polished Aluminum Air Intake System for immediate improvements in airflow and horsepower! The bolt-on installation requires no modifications and is made easy with the included hardware. This system features dual washable and reusable high flow filters that funnel into merged 3.5" polished aluminum tubes. Improve your Corvette's performance with smoother airflow and increased power output!