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K&N Filter Universal X Stream Clamp-On 2.438in Flange ID x 4.5in Base OD x 4in Top OD x 6.563in H

KNNRX-3800
In stock
Air Filters - Universal Fit
$75.99
K&N Universal X-Stream Clamp-On Air Filter | High-Flow Air Filter Maximize airflow with the K&N Universal X-Stream Clamp-On Air Filter. Features a 2.438" flange ID,...
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$75.99

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K&N Filter Universal X Stream Clamp-On 2.438in Flange ID x 4.5in Base OD x 4in Top OD x 6.563in H

K&N Universal X-Stream Clamp-On Air Filter | High-Flow Air Filter

Maximize airflow with the K&N Universal X-Stream Clamp-On Air Filter. Features a 2.438" flange ID, 4.5" base, 4" top, and 6.563" height for race-proven protection.

The K&N Universal X-Stream Clamp-On Air Filter is engineered for high-performance applications where maximum airflow and superior engine protection are critical. Built with a unique X-Stream inverted top design, this filter incorporates integrated pleated media directly into the top cap. This added surface area drastically reduces restriction, allowing your engine to pull in higher volumes of clean air compared to traditional closed-top filters.

Constructed with multiple layers of oiled cotton gauze media, the filter traps microscopic contaminants while maintaining smooth air velocity. Its ultra-strong, molded pliable rubber flange absorbs engine vibration for a secure hold and can stretch up to 1/16 inch (1.5mm) to fit slight dimension variations. Because it is washable and reusable, this clamp-on filter eliminates the need for disposable paper filters, serving as a long-lasting, high-performance upgrade for custom air intake systems.

Best Uses

  1. Custom Engine Builds & Air Intakes: Ideal for custom cold air intake setups, custom turbochargers, or supercharger inlets requiring a 2.438-inch flange connection.
  2. Motorsports & Racing: Designed for severe environments where engines demand maximum airflow without sacrificing filtration efficiency.
  3. ATVs, UTVs & Motorcycles: Suitable for high-RPM off-road vehicles and power sports setups needing compact, high-flowing air intake solutions.

Features

  1. Integrated X-Stream Filter Top: Features pleated filter media built into the top cap to significantly expand total filtration surface area.
  2. Multi-Layer Cotton Gauze Media: Uses premium, oil-treated cotton gauze to capture harmful debris while offering minimal air restriction.
  3. Pliable Molded Rubber Flange: Vibration-dampening rubber flange provides a tight seal and can stretch up to 1/16" (1.5mm) for precise fitment.
  4. Direct Clamp-On Design: Secures easily using a standard hose clamp, allowing for straightforward installation on custom intake pipes.
  5. Washable & Reusable Construction: Cleanable design allows the filter to be washed, re-oiled, and reused for the life of the intake system.

Benefits

  1. Increased Horsepower & Acceleration: High-flow design reduces air intake restriction, letting the engine breathe more freely to unlock extra power.
  2. Extended Service Intervals: Added surface area from the X-Stream top allows the filter to hold more dust before requiring maintenance.
  3. Superior Engine Protection: High filtration efficiency traps dirt and contaminants to shield internal engine components under demanding conditions.
  4. Cost-Effective & Eco-Friendly: Replaces disposable paper filters, reducing waste and saving money over time through reusable maintenance kits.
  5. Flexible Universal Fitment: The flexible rubber flange absorbs engine vibration and resists cracking, ensuring long-term durability in hot engine bays.
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1. Shipments to the Contiguous 48 US States Orders $149.99 and over qualify for our fast free shipping offer. We have worked with our shipping companies and integrated their shipping prices with our website for customer comfort.

2. Please see our International Orders page for orders shipping outside the US. We have worked with our shipping companies and integrated their shipping prices with our website for customer comfort.

3.For a specific delivery ETA based on the exact item(s) you want to purchase, please call us at (248) 832-2444 or message us via Chat before placing an order.

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1. Returned products must be in new, unused condition and include the original box and/or packaging with all tags included.

2. Once your return is received and inspected by MotoKarMax (usually within 48-72 hours of receiving), your refund will be processed and a credit will be applied to your credit card or original payment method. Please note that depending on your credit card company, it may take an additional 2-10 business days after your credit is applied for it to be posted to your account.

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