KNRX-3990-1 K&N 3″ Clamp On X Stream Tapered Air Filter, 4″ 6″ Od, 8.69″ H
$208.42
Enhance engine performance with the 3″ Clamp-On X-Stream Tapered Air Filter that fits 4″ to 6″ outer diameter inlets, delivering optimized airflow and filtration. Its 8.69″ height ensures compatibility with a broad range of applications, reducing intake restrictions and boosting efficiency. Discover how this precision-engineered filter can improve your vehicle’s power and longevity.
*Image(s) for illustrative purposes only
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Description
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 moulded 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.
Part KNRX-3990-1 Product Specifications
Product Style: Round Tapered Universal Air Filter
Air Filter Shape: Round Tapered
Base OutsideDiameter: 6 in (152 mm)
Top Outside Diameter: 4 in (102 mm)
Flanges: 1
Flange Inside Diameter: 3 in (76 mm)
Flange Length: 0.938 in (24 mm)
Flange Type: Centered
Height: 8.688 in (221 mm)
Filter Material: Cotton Gauze
Top Style: X-Stream
Top Material/Finish: None
Filter Re-Oiling Amount: 1.5 oz (44 ml)
Footnote 1: 1/4-20 Jack Nut Inserted Into Filter Top
Additional information
| Weight | 0.7200 kg |
|---|---|
| Dimensions | 16.20 × 27.90 × 16.20 cm |
| Category list | |
| Brand | K&N |







