K&N Universal Air Filter Chrome Round Tapered Red - 4in Flange ID x 1.125in Flange Length x 5.5in H

The K&N RG-1001RD is a universal clamp-on air filter designed to increase horsepower and acceleration. It features flange inserts that allow it to fit three different inside flange diameters. The filter is constructed with ultra-strong molded pliable rubber flanges that absorb vibration for secure attachment.

This washable and reusable air filter is made with multiple layers of premium cotton gauze treated with a tacking agent, providing high airflow with excellent filtration. Its specifications include a round tapered shape, a height of 5.5 inches, a base outer diameter of 6 inches, and a top outer diameter of 4.75 inches. The centered flange offers three inside diameter options: 4 inches, 3.5 inches, and 3 inches.