K&N Universal X-Stream Clamp-On Air Filter RX-3990-1
Advanced X-Stream Technology
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.
Superior Construction
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. The filter features cotton gauze filter material for optimal performance.
Washable & Reusable Design
K&N universal air filters are washable and reusable, providing excellent value and environmental benefits. The pleated filter built into the top offers low restriction while maintaining superior filtration capabilities.
Specifications
- Shape: Round Tapered
- Flange Diameter: 3 in (76 mm)
- Height: 8.688 in (221 mm)
- Base Outside Diameter: 6 in (152 mm)
- Top Outside Diameter: 4 in (102 mm)
- Flange Length: 0.938 in (24 mm)
- Filter Material: Cotton Gauze
- Filter Re-Oiling Amount: 1.5 oz (44 ml)
Features
- Pleated filter built in top
- Clamp-on design for easy installation
- Low restriction for maximum airflow
- 1/4-20 Jack Nut inserted into filter top