The K&N Universal Clamp-On Air Filter™ (Part No. RU-3108HBK) is the definitive mechanical and custom engineering induction solution, purposely developed to maximize volumetric efficiency across performance induction systems. Built featuring an innovative, premium oil-free dry synthetic media layout wrapped in a sleek black finish , this universal cone filter scales up unrestricted mass airflow velocity directly into your throttle body or turbocharger housing. Equipped with a heavy-duty 3-inch flange inner diameter, it serves as an uncompromising performance upgrade for racing applications, forced-induction builds, and custom cold air intake tracks where extreme airflow volumes and rugged contaminant filtration are simultaneously required.
Product Specifications:
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Brand: K&N.
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Filter Type: Universal Clamp-On Cone Air Filter.
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Flange Inside Diameter: 3.0 Inches (approx. 76 mm).
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Filter Media Structure: Advanced multi-layered dry synthetic composite.
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Color Profile: Stealth Black.
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Sustainability & Maintenance: Fully washable, rinseable, and reusable over a prolonged lifespan.
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Origin: Made in the United States of America.
Product Benefits:
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Optimized Air Volumetric Flow: The specialized tapered geometry presents an expanded physical surface area to supply massive charges of ambient oxygen, augmenting horsepower and torque curves.
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Oil-Free Dry Performance Tech: Eliminates the necessity for filter oiling during maintenance cycles, completely safeguarding sensitive Mass Airflow (MAF) sensors from oil tracking contamination.
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Universal Engineering Adaptation: Integrates perfectly as a direct clamp-on element over 3" outer diameter custom intake tubes or performance velocity stacks.
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Rigid Engine Protection: The high-density synthetic web construction matrix arrests destructive environmental grit and fine dust particles before they can score intake tracts.
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Aggressive Engine Bay Aesthetics: Enhances under-hood visual layout with a clean, functional matte-black appearance matching pro-touring or track-oriented builds, finished with a structural top cap emblazoned with the K&N brand mark.
Product Application Parameters:
Directions for Use:
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Verify that the receiving intake pipe or compressor snout has an exact outer diameter specification of 3.0 inches.
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Ensure the mating surface of your intake pipe is completely dry, degreased, and clear of particulate debris.
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Slide the flexible rubber mounting flange of the K&N filter smoothly over the pipe end until it is seated squarely.
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Position the heavy-duty stainless steel worm-gear hose clamp firmly over the structural clamping zone and tighten securely with a nut driver or screwdriver to lock the filter configuration in place.
Note:
This configuration features K&N's proprietary Dry Synthetic Media and must never be oiled. For scheduled maintenance, extract the filter element, spray thoroughly with specialized K&N dry filter cleaner solution, rinse outward with low-pressure water, and allow it to air-dry completely before reinstallation.
To find the right filter for your car and ensure exact fitment, please watch the explanatory video: https://www.youtube.com/watch?v=BElSgbmAZRA
Unleash your custom induction system's true breathing potential and protect your engine! Buy your premium K&N 3-inch Dry Black Cone Filter from Carboost store today.