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K&N Filter Universal X Stream Clamp-On 4in Top OD x 6in Base OD x 8-688in H x 3in Flange ID

K&N Engineering SKU RX-3990-1 Out of Stock - on backorder and will be dispatched once in stock.
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Availability: Out of Stock - on backorder and will be dispatched once in stock.
SKU: RX-3990-1
Manufacturer: K&N Engineering
$139.99

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.

K&N Filter Universal X Stream Clamp-On 4in Top OD x 6in Base OD x 8.688in H x 3in Flange ID

Filtre à air universel avec couvercle Xstream

Filtro Universal X-Stream con abrazadera

Universal X-Stream Clamp-On

Universal Filter

Air Filter

Universal product This part is not tied to one specific year, make, and model in our fitment database.

Universal parts can still depend on measurements, engine setup, trim, installation choices, or local rules. Send us your vehicle before ordering if anything is uncertain.

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