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Ships within 48 hours · Estimated delivery Jul 27 - Aug 1
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Description
K&N Universal X-Stream Clamp-On Air Filter (RX-4140)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
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.- Pleated filter built in top
- Washable and reusable
- Low restriction
- Clamp-on design
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.3 ★★★★★
Based on 25 reviews
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Product Reviews
★★★★★ 5
Consumer
Size: 16 Fl Oz (Pack of 1), Style: Fresh
It’s just a great cleaner no residue you don’t need a lot of it. No weird or funky stink to it. It just cleans.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 30, 2026
★★★★★ 3
Not effective as a cleaner
Size: 16 Fl Oz (Pack of 1), Style: Fresh
If you’re looking for a cleaner, this ain’t it. It’s about as effective as water on plastic.
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Reviewed in the United States on May 25, 2026
★★★★★ 5
Inexpensive with Great Results
Item Package Quantity: 1
If you read the instructions it is the easiest and quickest way with the best results I have seen. It takes less than 10 minutes with very little effort.
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Reviewed in the United States on May 14, 2026
★★★★★ 2
Would work on lightly yellowed lens
Item Package Quantity: 1
Did not completely work. Cleared lens up a bit. But for the money it was ok
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Reviewed in the United States on May 5, 2026
★★★★★ 1
Waste of money (seller refunded after results posted)
Item Package Quantity: 1
Do not waste your money. 0 results after application.
update. seller refunded my money after results posted. 5-30-26
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Reviewed in the United States on May 27, 2026