Weapon*R Secret Weapon™ Performance Air Filter

3" Inlet • 6.5" Height • 6.5" Width

The Weapon*R Secret Weapon™ Performance Air Filter is the culmination of years of research, development, flow bench testing, and real-world performance tuning. Engineered to maximize airflow velocity, air mass, and intake efficiency, the Secret Weapon™ delivers performance levels that conventional air filters simply cannot match.

At the heart of the Secret Weapon™ is a CAD-designed and flow bench-tested integrated velocity stack. Unlike traditional air filters that merely filter incoming air, the Secret Weapon™ actively accelerates and directs airflow into the intake system, increasing airspeed and air mass entering the engine. The result is improved throttle response, increased horsepower potential, and enhanced overall engine performance.

The filter element utilizes high-density open-cell polyurethane foam technology, providing an exceptional balance of airflow and filtration. Independent studies have shown that quality foam filters can deliver significantly greater airflow while offering superior dirt filtration compared to conventional cotton gauze filters. The Secret Weapon™ was designed to take full advantage of these benefits, ensuring maximum engine protection without sacrificing performance.

Unlike traditional cotton filters that can become restrictive as dirt accumulates, the Secret Weapon™ foam element features Open Cell Technology that allows air to continue flowing around captured contaminants. This unique design helps maintain consistent airflow and performance even as the filter becomes dirty, reducing the likelihood of airflow loss over time.

For long-term value and serviceability, the Secret Weapon™ is fully reusable and rebuildable. The filter can be easily disassembled for cleaning and maintenance, allowing the foam element to be serviced and reassembled for years of reliable performance.

Key Features

• Integrated CAD-Designed Velocity Stack
• Flow Bench Tested for Maximum Airflow Efficiency
• High-Density Open-Cell Polyurethane Foam
• Excellent Airflow and Superior Filtration Performance
• Increased Airspeed and Air Mass Delivery
• Improved Throttle Response and Engine Performance
• Reusable, Washable, and Rebuildable Design
• Maintains Airflow Even as Dirt Accumulates
• Available in Multiple Inlet Sizes and Lengths
• Designed for Street Performance, Racing, and Motorsport Applications

When maximum airflow, superior filtration, and proven performance matter, the Weapon*R Secret Weapon™ Air Filter stands alone as one of the most advanced performance air filters available today.