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  • K&N Filter Universal X Stream Clamp-On 4-1/2in Flange 5-7/8in Base 4-1/2in Top 4-1/2in Height
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K&N Filter Universal X Stream Clamp-On 4-1/2in Flange 5-7/8in Base 4-1/2in Top 4-1/2in Height

K&N Engineering
KNNRU-1005
In stock
Air Filters - Universal Fit
$62.99
K&N Universal X-Stream Air Filter | 4.5" Flange (RU-1005) Boost airflow and performance with the K&N Universal X-Stream Clamp-On Air Filter (4.5" flange, 5-7/8" base,...
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$62.99
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K&N Filter Universal X Stream Clamp-On 4-1/2in Flange 5-7/8in Base 4-1/2in Top 4-1/2in Height
Description

K&N Universal X-Stream Air Filter | 4.5" Flange (RU-1005)

Boost airflow and performance with the K&N Universal X-Stream Clamp-On Air Filter (4.5" flange, 5-7/8" base, 4.5" height). High-flow, washable, and reusable design.

The is engineered to deliver high airflow with minimum restriction while providing filtration protection. Designed for custom intakes and performance applications, this filter features K&N's signature X-Stream top, which integrates additional filter area directly into the top cap to pull in even more air.

It is constructed with four layers of premium oiled cotton gauze. The filter incorporates a pliable, molded rubber flange that absorbs engine vibrations and stretches up to 1/16th of an inch for a secure, custom fit. Built for durability, it is fully washable and reusable, offering a long service life.

Best Uses

  1. Racing Vehicles: Ideal for track, drag, and off-road race setups requiring maximum airflow.
  2. Custom Intake Systems: Perfect for custom engine builds with a 4.5-inch outer diameter intake pipe.
  3. Off-Road & Specialty Equipment: Excellent for ATVs, snowmobiles, and tractors requiring enhanced air filtration under harsh conditions.

Features

  1. X-Stream Filter Top Design: Integrates an active filter surface into the top cap for increased airflow capacity.
  2. High-Flow Cotton Gauze Media: Features 4 layers of pleated, oiled cotton gauze to capture contaminants effectively.
  3. Flexible Rubber Flange: Molded pliable rubber absorbs vibration and can stretch up to 1/16 in. (1.5mm) for a tight seal.
  4. Clamp-On Fitment: Designed with a 4.5-inch centered flange diameter for simple, direct installation using standard hose clamps.
  5. Washable & Reusable: Can be cleaned and re-oiled using a K&N filter care kit.

Benefits

  1. Increased Horsepower & Acceleration: High-flow media minimizes intake restriction to improve throttle response and power output.
  2. Long-Term Cost Savings: Reusable construction eliminates the need to repeatedly replace disposable paper air filters.
  3. Engine Protection: Blocks dirt, dust, and debris from entering the engine while maintaining maximum airflow.
  4. Vibration-Resistant Seal: The durable rubber flange prevents leaks and withstands high vibration levels in high-performance engines.
  5. Extended Cleaning Intervals: Capable of going up to 75,000 miles before requiring a clean under normal highway driving conditions.
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