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  • K&N X-Stream Top Assembly 14in OD 5.125in Neck Flange 4.62in H w/Vent
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K&N X-Stream Top Assembly 14in OD 5.125in Neck Flange 4.62in H w/Vent

K&N Engineering
KNN66-3010
In stock
Air Filters - Universal Fit
$167.99
K&N X-Stream Top Assembly 14" OD 5.125" Neck Flange Air Filter Lid Maximize airflow with the K&N X-Stream Top Air Cleaner Assembly (14" OD, 5.125"...
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$167.99
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K&N X-Stream Top Assembly 14in OD 5.125in Neck Flange 4.62in H w/Vent
Description

K&N X-Stream Top Assembly 14" OD 5.125" Neck Flange Air Filter Lid

Maximize airflow with the K&N X-Stream Top Air Cleaner Assembly (14" OD, 5.125" Neck Flange, 4.62" H w/ Vent). Cleanable, reusable high-performance filter top.

Upgrade your engine's intake efficiency with the K&N X-Stream Top Air Cleaner Assembly. Unlike conventional solid-top air cleaner lids that restrict incoming air to the side walls of the filter, the patented X-Stream Air Flow Top features an integrated, high-flow filter element right in the lid. This innovative design adds critical surface area and pulls extra air directly into the center of the filter, optimizing overall air velocity and volume into your carburetor or throttle body.

Engineered with a 14-inch outer diameter, a standard 5.125-inch neck flange, an overall height of 4.62 inches, and an integrated vent, this assembly fits seamlessly onto popular 4-barrel carburetors and throttle body injection (TBI) setups. Crafted using K&N's signature oiled cotton gauze filter media encased in aluminum, it delivers exceptional filtration efficiency to protect your engine from harmful contaminants while maximizing horsepower and torque. Washable and reusable, the K&N X-Stream top is built to last for the life of your vehicle.

Best Uses

  1. High-Performance Street & Strip Vehicles: Ideal for hot rods, muscle cars, and drag racers seeking maximum CFM (cubic feet per minute) airflow into 4-barrel carburetors.
  2. Off-Road & Track Racing: Provides extra filtration surface area to handle heavy dust and high-RPM environments without airflow restrictions.
  3. Carburetor & TBI Upgrades: Fits standard 5-1/8 inch (5.125") carburetor necks (Holley, Edelbrock, Rochester, Carter, and EFI throttle bodies).
  4. Tight Engine Bays Needing Extra Air: Excellent solution when vertical clearance limits the height of side filter pleats, allowing the top element to pull in additional air volume.

Features

  1. Patented X-Stream Filter Top Design: Integrates a active filter element into the assembly lid, expanding total filter surface area and drawing air through both the top and sides.
  2. Standard 5.125" Neck Flange Fitment: Engineered to mount directly onto standard 5-1/8 inch carburetor air horns and TBI units.
  3. Integrated Vent Connection: Comes equipped with a pre-configured vent fitting for easy connection of crankcase ventilation (PCV) or breathers.
  4. Oiled Cotton Gauze Media: High-flow, multi-layered cotton gauze media pre-oiled to trap micro-particulates while allowing maximum airflow.
  5. Durable Construction: Features a lightweight aluminum rim trim and sturdy wire mesh framing built to withstand high-engine vibration and harsh racing conditions.

Benefits

  1. Increased Horsepower & Throttle Response: Directing airflow through the top of the filter reduces intake turbulence and delivers cooler, dense air for faster engine response.
  2. Washable & Reusable Economy: Easily cleaned using K&N Recharger Kits—eliminates the continuous expense of replacing disposable paper filters.
  3. Extended Service Intervals: Additional surface area provided by the filter top prevents premature clogging, letting you go longer between cleanings.
  4. Superior Engine Protection: Provides exceptional filtration efficiency to shield internal engine components from dust, dirt, and debris without sacrificing airflow.
  5. Direct Drop-In Installation: Pre-sized dimensions (14" OD x 4.62" Height) make installation simple using standard air cleaner mounting hardware.
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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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