K&N Universal X-Stream Clamp-On Air Filter: High Performance, Premium, Replacement Filter: Flange Diameter: 3.3125 In, Filter Height: 4.25 In, Flange Length: 0.9375 In, Shape: Round, RX-4120-1

ENGINEERED POWER: State-of-the-art air filter media is designed to increase horsepower and acceleration as well as improve overall engine performance. 4 LAYERS OF PROTECTION: Multiple layers of premium cotton gauze treated with a specially-designed tacking agent work together to create an intricate mesh of engine filter media that is designed to block and trap harmful contaminants. RUGGED CONSTRUCTION: K&N Universal Air Filters are manufactured with durable, premium materials and state-of-the-art construction methods to last a lifetime. CLEAN ONCE EVERY 5 YEARS: Engine air filter only needs cleaning every 75,000 miles under normal highway driving conditions (5 years based on the average miles driven per year of 15,000 miles). EASY INSTALLATION: K&N Air Filters are pre-oiled and ready to drop into your factory air box- they are one of the easiest and most cost-effective vehicle upgrades for quick performance gains. UNIVERSAL FITMENT: Designed for use on a variety of applications. REDUCES WASTE: Over 200 million disposable air filters and their packaging waste wind up in landfills each year- reusable filters help reduce waste in our landfills. NO-HASSLE WARRANTY: 1-Year Limited Warranty. MADE IN USA: K&N Air Filters are proudly made in the USA for trusted quality & reliability