Uni Filter NU-4058ST Two-Stage Foam Air Filter for Honda Dirt Bikes

The Uni Filter NU-4058ST is a high-performance, two-stage foam air filter designed specifically for Honda dirt bikes. This dual-layer filtration system provides superior engine protection in the demanding conditions of off-road riding.

Two-Stage Filtration Technology:

• Large-pore outer pre-filter layer captures bigger dirt particles and debris
• Small-pore inner filter layer traps fine dust and engine-damaging grit before it reaches the cylinder
• Dual-density foam construction maximizes airflow while providing exceptional filtration

Performance Features:

• Premium open-cell polyurethane foam construction
• Washable and reusable for long-term cost savings
• Direct replacement for OEM Honda air filters
• Trusted by professional racing teams including Kawasaki, Yamaha, and Suzuki off-road programs

Uni Filter's proven two-stage design delivers the optimal balance of air filtration and flow, ensuring your Honda dirt bike engine receives clean air for maximum performance and longevity in the toughest trail and track conditions.