K&N | Universal Clamp-On Air Filter 4 Inch - High Performance Washable Cone Filter

The K&N Universal Clamp-On Air Filter™ is the definitive performance and custom engineering induction solution, purposely developed to maximize volumetric efficiency across high-output custom performance induction systems. Built featuring K&N's iconic oiled-cotton multi-layered filtration grid , this universal cone filter scales up unrestricted mass airflow velocity directly into your throttle body or turbocharger housing, boosting horsepower and torque response. Equipped with a heavy-duty 4-inch flange inner diameter, it serves as an uncompromising performance upgrade for racing applications, continuous forced-induction builds (Turbo/Supercharger), and custom cold air intake tracks where massive airflow volumes and rugged contaminant filtration are simultaneously required.

Product Specifications:

• Brand: K&N.

• Filter Type: Universal Clamp-On Cone Air Filter.

• Flange Inside Diameter: 4.0 Inches (approx. 102 mm).

• Filter Media Structure: Multi-layered premium cotton gauze matrix treated with specialized high-tack oil.

• Color Profile: Signature K&N Dark Red / Maroon.

• Sustainability & Maintenance: Fully washable, re-oilable, and reusable over a prolonged operational lifespan.

• Origin: Made in the United States of America.

Product Benefits:

• Maximum Air Volumetric Flow: The specialized tapered conical geometry presents an expanded physical surface area to supply massive charges of ambient oxygen, augmenting aggressive horsepower and torque curves.

• Crisp Throttle Dynamics: Enhances the volumetric efficiency of the intake manifold, unlocking sharp, instant throttle response and eliminating induction lag when pressing the pedal.

• Sustainable Economic Value: Eradicates recurring maintenance costs associated with periodic disposable filter changes, effectively protecting your long-term vehicle upkeep budget.

• Rigid Engine & Compressor Protection: The high-density oiled cotton construction matrix arrests destructive environmental grit and fine dust particles before they can score intake tracts or compressor wheels.

• Aggressive Engine Bay Aesthetics: Enhances under-hood visual layout with a clean, functional red-performance look featuring a structural top cap emblazoned with the K&N brand mark.

Product Application Parameters:

• Universal Fitment: This is a universal component and is not platform-specific. It functions with total compatibility across any performance vehicle setup utilizing a custom-fabricated 4-inch air induction pipe or turbocharger inlet configuration.

Directions for Use:

1. Verify that the receiving intake pipe, connection boot, or compressor snout has an exact outer diameter specification of 4.0 inches.

2. Ensure the mating surface of your intake pipe is completely clean, degreased, and clear of particulate debris.

3. Slide the flexible rubber mounting flange of the K&N filter smoothly over the pipe end until it is seated squarely.

4. Position the heavy-duty stainless steel worm-gear hose clamp firmly over the structural clamping zone and tighten securely with a screwdriver or nut driver to lock the configuration in place.

Maintenance Profile:

This configuration features K&N's proprietary pre-oiled cotton media right from the production facility and is ready for immediate drop-in use. To preserve peak volumetric flow thresholds across standard highway operations or sandy performance environments, routine servicing with a genuine K&N Recharger kit (cleaner and oil combo) is recommended roughly every 80,000 kilometers.

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 4-inch Cone Filter from Carboost store today.