Enhance your motorcycle or ATV performance with the UNI NU-4139 Air Filter, designed to fit perfectly in the factory air box just like the original filter. This air filter is...
Enhance your motorcycle or ATV performance with the UNI NU-4139 Air Filter, designed to fit perfectly in the factory air box just like the original filter. This air filter is a top choice among competition motorsport enthusiasts, providing superior airflow and filtration. Its unique two-stage design allows for easy cleaning and maintenance, ensuring your vehicle runs at its best.
The UNI NU-4139 features a dual layer of foam that can be serviced separately, making it a practical option for regular upkeep. Additionally, the thin ultra seal base is virtually impossible to tear and includes a built-in 'grease groove' for added convenience. Trusted by factory teams from Yamaha, Kawasaki, and Suzuki, this air filter is a reliable choice for off-road applications. Equip your ride with the best and experience the difference in performance and durability.
Features: * Designed to fit in the factory air box exactly like the original filter
* 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 features a built-in 'grease groove'
* Used by factory Yamaha, Kawasaki, and Suzuki off-road teams