More Horsepower/Torque Medical grade cotton gauze filter media reduces air restriction and increases engine output Surface area optimized to reduce pressure differential across the element resulting in reduced back pressure and increased torque Increased Airflow Precision pleat geometry optimizes airflow through intake system Engineered to control maximum filter face air velocity with deep precision pleats Improved Engine Protection Multi-layer oiled cotton gauze attracts and traps contaminants without sacrificing air flow Sturdy epoxy coated wire mesh construction protects filter media (and engine) from large debris