What is the benefit of the XStream top design?

The XStream top adds a second filter element directly into the filter's cap. This increases the total filter surface area, which allows for higher air flow and a longer service interval before the filter needs to be cleaned.

How does the rubber flange help with installation?

The molded pliable rubber flange is designed to absorb engine vibration, which helps maintain a secure attachment over time. It can also be stretched slightly, up to 1/16 inch, to help it fit snugly onto slightly different sized tubing.

Can this air filter be used in California?

No, this K&N air filter is not CARB approved and cannot be shipped to California due to emissions regulations.

K&N Filter Universal X Stream Clamp-On 2.5in Flange ID / 6in Base OD / 5in Top OD / 5.5in Height

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Specifications

Brand: K&N
Part #: RX-4950
UPC: 024844094735

K&N Filter Universal X Stream Clamp-On 2.5in Flange ID / 6in Base OD / 5in Top OD / 5.5in Height

Name: K&N Filter Universal X Stream Clamp-On 2.5in Flange ID / 6in Base OD / 5in Top OD / 5.5in Height
Brand: K&N
Price: 209.99 USD
Availability: InStock

$209.99

Only 2 left in stock

Fits 2011-2016 Honda CR-Z. K&N's X-Stream clamp-on air filter adds a second filter element in the top for improved airflow and longer service intervals.

Key Features

Fits 2011-2016 Honda CR-Z.
Features an XStream top with an additional filter element for increased surface area and airflow.
The clamp-on design allows for easy installation onto a 2.5-inch flange.
Constructed with a pliable rubber flange that absorbs vibration and ensures a secure attachment.
The flange can be stretched up to 1/16 inch for a more adaptable fit.
Washable and reusable filter media for long-term service.

⚠️ CA WARNING: This product can expose you to chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm. Learn more

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Fits this vehicle

Honda CR-Z 2011-2016

Product Details

The K&N RX-4950 features a unique XStream top, which incorporates an additional filter element directly into the filter's cap. This design significantly increases the total filter surface area, allowing for higher air flow and extending the time between cleanings. The clamp-on design makes installation straightforward, and the pliable rubber flange is built to absorb engine vibration while ensuring a secure fit.

This universal air filter is constructed with K&N's well-known filtration media, offering excellent protection for your engine. The flange can be stretched up to 1/16 inch to accommodate slight variations in tubing diameter, making it adaptable for custom applications. Because it's washable and reusable, you can clean and re-oil it for continued use, making it a solid option for performance and longevity.