Enhance your vehicle's performance with the UNI NU-4121 Air Filter, designed to fit perfectly in your factory air box just like the original filter. This top-selling replacement is ideal for...
Enhance your vehicle's performance with the UNI NU-4121 Air Filter, designed to fit perfectly in your factory air box just like the original filter. This top-selling replacement is ideal for competition motorcycles and ATVs, ensuring you get the best airflow and filtration for optimal engine performance. Its unique two-stage design allows for easy and complete cleaning, making maintenance a breeze.
The dual-layer foam construction of the UNI NU-4121 ensures superior filtration, and each layer can be serviced separately for maximum efficiency. The thin ultra-seal base is virtually impossible to tear and features a built-in "grease groove" to keep dirt and debris out. Trusted by factory teams from Yamaha, Kawasaki, and Suzuki, this air filter is a must-have for any serious off-road enthusiast looking to maintain their vehicle's performance and reliability.
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 has a built-in grease groove
* Used by factory Yamaha, Kawasaki, and Suzuki off-road
