Pipercross Performance Air Filter Focus RS MK1

• Manufactured from multiple layers of patented open-cellpolyurethane foam 
• Pipercross panel filters are a direct replacement for your restrictive paper air filter element.
• Fits directly in to airbox
• 30% more airflow
• Lifetime filter - easy to clean and reuse.
• Thousands of applications
• Increased capacity
• Pipercross filters allow air to flow long after other air filters have reached their maximum dirt capacity.