Outerwears Side Intake Pre-Filter Polaris RZR XP 900 Enhance your engine's defense with Outerwears' intake pre-filter, fashioned from silicone-infused micro-mesh for optimal water resistance. With precise dielectric welding along the seams, this pre-filter adeptly eliminates particles as tiny as .005 in diameter, maintaining air flow to the engine without significant restriction. Its material boasts uniform micron-sized openings, effectively filtering out sand, dirt, clay, and moisture while allowing air passage. This ensures a purified air intake, safeguarding your engine from harmful debris. 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