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These Outerwears Pre-filters are designed to enhance the efficiency of any performance or exposed filter. Outerwears keep the bigger particles of sand, dirt, clay and street debris from clogging the pleats of air filter elements which compromises peak airflow and horsepower.
• Straight-Style Pre-filter Fits K&N RD-4000 Series Sprint/Midget Filters • Colors Available: Red, Blue, Black, Yellow, Purple • Constructed with proprietary polyester UV-resistant mesh with uniform micron openings • Filters debris down to .005”