Yamaha YFZ450 YFZ 450 2004-2018 UNI Foam Air Filter (Fits GYTR Billet Intake)

UNI Filter Multi-Stage Competition Air Filter | NU-3218ST

Upgrade your machine’s defense and performance with the UNI Filter NU-3218ST Multi-Stage Competition Air Filter. Unsurpassed in airflow, dirt-stopping efficiency, and overall reliability, this premium dual-stage foam filter is designed to handle the harshest track-and-trail conditions. It is the go-to choice trusted by factory off-road racing teams.  

Key Features & Benefits

• Advanced Dual-Stage Protection: Features two separate layers of specialized foam. The large-pore outer pre-filter captures large dirt particles and mud, while the small-pore inner filter stops fine, engine-wrecking grit from ever reaching your cylinder.  

   

• Maximum Airflow: Engineered to deliver sustained, high-volume airflow for longer periods, ensuring your engine breathes clean air without sacrificing horsepower.

• Ultra-Seal Technology: Built with a thin, virtually tear-proof Ultra Seal base featuring a built-in "Grease Groove" on the sealing surface to create an airtight, flawless barrier against debris.  

   

• Serviceable & Reusable: Easy to clean and re-oil, providing a long-lasting, cost-effective replacement over standard stock filters.  

   

• Made in the U.S.A.

Vehicle Fitment & Compatibility

Designed for Yamaha YFZ450 and YFZ450R/YFZ450X sport ATVs (Fits models from 2004–2025+, including Special Editions and Bill Balance Editions).  

⚠️ Important Fitment Note: This specific filter element is designed to fit models equipped with a GYTR filter adapter / intake modification. Please verify your intake setup before purchasing.