UNI NU-4145ST Air Filter for Off-Road Motorcycles and ATVs

The UNI NU-4145ST Air Filter is specifically designed to fit perfectly within the factory air box, providing an exact replacement for your off-road motorcycle or ATV. Built to meet the demands of competitive racing and rugged outdoor riding, this filter ensures optimal airflow and engine performance. Its precise fitment helps maintain the integrity of your vehicle's air intake system, reducing the risk of dirt and debris entering the engine.

This model features a unique two-stage design that allows for easy cleaning and maintenance, extending the lifespan of the filter and maintaining peak engine efficiency. The dual-layer foam construction can be serviced separately, making it simple to replace or clean each layer without removing the entire filter. The ultra-thin base with a built-in grease groove is virtually tear-proof, providing durability and a secure seal to prevent unfiltered air from bypassing the filter media.

Trusted by factory teams of Yamaha, Kawasaki, and Suzuki, the UNI NU-4145ST Air Filter is a high-quality choice for enthusiasts seeking superior filtration and reliable performance in off-road conditions. Its robust construction and proven design make it a popular replacement for competition motorcycles and ATVs, ensuring your vehicle maintains optimal power and responsiveness during demanding rides.

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