K&N Engineering RX-4990 Universal X Stream Clamp-On Air Filter with 3 Inch Flange and 5 9/16 Inch Height

K&N XStream Top Universal Air Filters take performance to the next level with the addition of a filter within the filter's top adding more filter area for higher air flow and a longer service interval. The XStream Air Filter provides awesome air flow and outstanding filtration. When racing, in any environment, racers need all the protection and airflow they can get. K&N delivers. All K&N universal air filters are constructed with ultra-strong molded pliable rubber flanges which absorb vibration and allow for secure attachment and can also be stretched for up to 1/16 inch (1.5mm) to fit in-between sizes. K&N universal air filters are washable and reusable. K&N XStream Top Universal Air Filters take performance to the next level with the addition of a filter within the filter's top adding more filter area for higher air flow and a longer service interval.

• Clamp On Design
• Clamp-on design

The K&N Engineering RX-4990 Universal X Stream Air Filter is designed to enhance your vehicle's performance through increased airflow and superior filtration efficiency. Featuring a unique filter-within-a-filter top design, this air filter provides additional filter surface area, enabling higher airflow rates and extending the service interval. This makes it an excellent choice for racing environments and high-performance applications where maximum airflow and protection are critical. Constructed with ultra-strong molded pliable rubber flanges, it ensures a secure fit while absorbing vibrations. The flanges are stretchable up to 1/16 inch (1.5mm) to accommodate a range of sizes, offering versatile installation options. This filter is washable and reusable, providing long-term value and environmental sustainability. The clamp-on design simplifies installation and removal, making maintenance straightforward. Suitable for use with a variety of vehicles, including the 2005 Ford Focus, this filter offers outstanding filtration without the need for CARB approval. Its robust construction and innovative design make it an ideal upgrade for performance enthusiasts seeking reliable and efficient air intake solutions.

Features:

• Enhanced airflow with filter within a filter top design for increased filter surface area

• Constructed with durable, pliable rubber flanges that absorb vibration and allow secure attachment

• Stretchable flange design up to 1/16 inch (1.5mm) for flexible fitment

• Washable and reusable for long-term use and environmental benefits

• Clamp-on installation for easy setup and maintenance

• Designed to improve performance in racing and high-demand environments

Fits
Ford Focus ZX3 2005
Ford Focus ZX4 2005
Ford Focus ZX5 2005
Ford Focus ZXW 2005