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
Enhance your vehicle's airflow and filtration with the K&N Engineering RX-4990 XStream Top Universal Air Filter. Designed for optimal performance, this filter features a unique design with a filter-in-a-filter top, providing increased surface area for higher air flow and extended service intervals. The innovative construction ensures your engine receives a continuous supply of clean, cool air, improving overall efficiency and power output. Built with durable, pliable rubber flanges, the filter absorbs engine vibrations and offers a secure fit that can be stretched slightly to accommodate different intake sizes, making it versatile for various applications. This washable and reusable filter is ideal for high-performance environments such as racing or daily driving, where maximum airflow and filtration are essential. The clamp-on mounting system simplifies installation, allowing you to quickly upgrade your vehicle’s intake system without hassle.
Engineered by K&N Engineering, a trusted name in automotive performance, this universal air filter is specifically designed to fit 2005 Ford Focus models, ensuring a precise and secure fit. The filter’s dimensions and high-quality materials contribute to its longevity and reliable performance, even under demanding conditions. The RX-4990 model combines innovative design with proven durability, making it a valuable upgrade for enthusiasts seeking to optimize their vehicle's airflow and filtration capacity. Whether you're racing, off-roading, or just looking to boost your daily driver, this air filter delivers outstanding results and long-term value.
Please note that this product is not CARB approved, and installation may require acknowledgment of regulatory considerations. With its robust build and performance-enhancing features, the K&N RX-4990 XStream Top Universal Air Filter is a smart choice for serious automotive enthusiasts.
Features:
Filter-in-a-filter top design for increased airflow and longer service intervals
Clamp-on mounting system for easy installation and secure fit
Constructed with ultra-strong molded pliable rubber flanges that absorb vibration and provide flexibility
Washable and reusable for long-term savings and environmental friendliness
Designed specifically to fit 2005 Ford Focus models
High-quality materials ensure durability and reliable performance under demanding conditions
Fitment:
2005 Ford Focus ZX3
2005 Ford Focus ZX4
2005 Ford Focus ZX5
2005 Ford Focus ZXW
Air Freight Prohibited: false
Not Carb Approved: true
Carb Acknowledgement Required: true
Ltl Freight Required: false
Prop 65: Y
Part Type: automotive
Epa: N/A
Regular Stock: t
Units Per Sku: 1
Product Details
Vehicle Fitment
Features
FAQ
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