UNI NU-4066 air filter for off-road motorcycles and ATVs

The UNI NU-4066 air filter is expertly designed to fit perfectly within the factory air box, ensuring a seamless replacement that maintains your vehicle’s original performance. This filter is one of the best-selling choices for competition motorcycles and ATVs, trusted by riders who demand durability and efficiency. Its unique two-stage design allows for easy cleaning and maintenance, significantly extending the service life of the filter while maintaining optimal airflow. The dual-layer foam construction can be serviced separately, enabling thorough cleaning without compromising the filter’s integrity or performance.
Constructed with a thin, ultra-seal base that is virtually tear-proof, the NU-4066 features a built-in "grease groove" to enhance sealing and prevent unfiltered air from bypassing the filter media. This design ensures that your engine receives clean, debris-free air, which is critical for maximizing power and prolonging engine life. The filter’s precision fit and durable materials make it a reliable choice for off-road enthusiasts who demand high performance from their vehicles.
Manufactured by UNI, this air filter is used by factory teams from Yamaha, Kawasaki, and Suzuki for off-road and racing applications. Its high-quality foam layers and innovative sealing technology make it suitable for rigorous use in competitive environments. Whether you're replacing a worn-out filter or upgrading for better filtration and easier maintenance, the UNI NU-4066 offers an excellent balance of performance, durability, and ease of service, ensuring your motorcycle or ATV operates at peak efficiency in demanding conditions.

Features:

• Designed to fit in the factory air box exactly like original filter

• The best selling replacement air filter for competition motorcycles and ATVs

• Unique two-stage design allows for easy and complete cleaning

• Dual layer of foam can be serviced separately

• Thin ultra seal base is virtually impossible to tear and has a built-in "grease groove"

• Used by factory Yamaha, Kawasaki, and Suzuki off-road teams