Universal Clamp On Filtr

The K&N Engineering Universal Clamp On Filter RU-5111 is a performance intake solution designed for engine builders, mechanics, and automotive enthusiasts seeking improved airflow without committing to a full intake system replacement. This universal clamp-on design allows you to retrofit a high-flow filter element onto existing intake ducting, making it ideal for custom builds, engine swaps, and modified vehicles where OEM air boxes have been removed or replaced.

Whether you're tuning a street engine, preparing a track car, or optimizing an off-road build, this filter provides a direct path for cooler, denser intake charge while maintaining engine protection against contaminants. K&N's pleated cotton media and specialized construction deliver superior filtering efficiency compared to standard disposable filters, capturing fine particulates while minimizing restriction and pressure drop across the filter element.

The universal clamp-on mounting system accommodates intake diameters of 3.0" to 5.0", securing firmly with adjustable hose clamps for vibration-resistant installation in engine bays of all configurations. At just 0.75 pounds and measuring 5 x 4.75 x 7.5 inches, the compact profile fits tight underhood spaces without requiring custom fabrication or modification to support brackets. The filter's durable construction and K&N's reputation for quality engineering ensure reliable performance across thousands of miles of street and performance driving.