Open Funnel Performance Air Filter 4.5in Inlet

The Open Funnel Performance Air Filter 4.5in Inlet from Vibrant Performance is designed for automotive builders and enthusiasts who require optimal airflow without sacrificing filtration quality. This filter is particularly suited for custom engine builds, forced-induction setups, and performance modifications where maximizing air volume is essential for enhancing power output.

Featuring a 4.5-inch inlet diameter, the filter allows for a significant flow pathway that minimizes restriction compared to stock or smaller aftermarket filters. Its open funnel design reduces turbulence and pressure drop, enabling air to flow smoothly into the intake tract. Constructed with high-efficiency media, this filter effectively captures particulate matter while maintaining low-restriction characteristics, making it ideal for performance applications.

This filter is perfect for custom intake manifold fabrication and tuning, ensuring compatibility with both naturally aspirated and forced induction systems. Its compact size and lightweight construction facilitate easy integration into engine bays with limited space, while the funnel geometry promotes efficient airflow patterns.