Outerwears Pre-Filter Yamaha Rhino 450 / Rhino 660 Enhance your engine's safeguarding with an intake pre-filter by Outerwears. Crafted from water-resistant silicone-impregnated micro-mesh and seam sealed through dielectric welding, these pre-filters excel at eliminating particles as tiny as .005 in diameter while maintaining optimal airflow to your engine. The material features consistent micron-sized apertures that enable air passage while effectively screening out undesirable elements like sand, dirt, clay, and moisture. 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