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The K&N Engineering HA-4504 air filter is designed specifically for off-road motorcycles, ATVs, UTVs, and Side by Sides such as the Honda TRX450R from 2004 and 2005. Engineered to improve airflow and filtration, this filter enhances horsepower and acceleration without requiring modifications to your vehicle's fuel management system. Its high-performance pleated media provides a large filtration surface area, which extends service intervals and ensures consistent, clean carburetion even in dusty or high-altitude environments. The filter's application-specific sealing bead guarantees a precise fit within the OEM air box, preventing unfiltered debris from entering the engine and maintaining optimal engine health. Built with multiple layers of woven cotton gauze, the filter delivers excellent filtration efficiency while allowing maximum airflow for better engine performance. The HA-4504 is washable and reusable, with most units pre-oiled and ready to install, simplifying maintenance and reducing long-term cost. This filter is an ideal upgrade for off-road enthusiasts seeking reliable, high-performance air filtration that supports extended riding in harsh environments.
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