Outerwears Pre-Filter Polaris RZR XP 1000 / RZR XP Turbo Upgrade the protection of your filter with an intake pre-filter designed by Outerwears. Constructed from silicone-impregnated micro-mesh material, these pre-filters are water-resistant and feature dielectrically welded seams. They are capable of filtering out particles as small as .005 in diameter while maintaining airflow efficiency to your engine. With uniform micron-sized openings, the pre-filters allow air to pass through while effectively trapping sand, dirt, clay, and moisture to prevent them from entering the engine. Features: Dyno and flow bench testing reveals no loss of horsepower or airflow when using this product Keeps your engine safer in harsh conditions Filters particles down to .005