O2 RUSH High-Performance Air Filter fits CRF250R CRF250RX (2018-2025) CRF450R CRF450RX (2017-2025) - Washable & Reusable (OEM 17213-K95AG0)

The O2 RUSH High-Performance air filter is the ultimate performance upgrade for modern CRF250R, CRF250RX, CRF450R and CRF450RX models. Designed with a coarse outer foam layer and fine inner layer, it flows dramatically more clean air than the stock filter – giving you sharper throttle response, more top-end power, and better engine protection in dusty conditions. The durable rubber sealing rim and aluminum-reinforced mesh create a perfect airtight seal every time you close the airbox. Easy to maintain: just clean with O2 RUSH cleaner, let dry, re-oil, and reinstall. One filter lasts the lifetime of your bike with proper care. Perfect for motocross, enduro, desert racing, or trail riding.

• Saw-Tooth Foam Design: Features a unique, patented saw-tooth pattern that provides up to double the surface area of standard filters, maximizing airflow and filtration efficiency.
• Enhanced Engine Performance: The high-flow design allows the engine to "breathe" better, improving airflow, throttle response, and potentially increasing horsepower and torque.
• Superior Sealing: Utilizes a 12mm ultra-soft foam seal to ensure a tight, dust-proof fit between the filter and the airbox, preventing dirt and contaminants from bypassing the filter.
• Durable Construction: Made with flexible glue seams and high-quality, long-lasting materials that resist becoming brittle and cracking over time.
• Precision Fitment: All filters are precisely laser-cut to guarantee a perfect fit and compatibility with the specific air intake system, simplifying installation and eliminating the need for modifications.