K&N

K&N — High-Flow Air Filters, Cold Air Intakes & Oil Filters

K&N Engineering has been manufacturing washable, reusable performance air filters since 1969, building the most recognized brand in automotive filtration through decades of proven performance on the street, strip, and race track. From OEM drop-in replacement panel filters to complete cold air intake systems and high-flow oil filters, K&N produces filtration products for virtually every domestic and import vehicle on the road — delivering measurable airflow improvements, long service intervals, and a lifetime of reusability that makes them the highest-value filtration upgrade available.

High-Flow Air Filters

K&N's signature cotton gauze air filter media is the foundation of the entire product lineup. Multi-layer oiled cotton gauze flows significantly more air than OEM paper filters at equivalent filtration efficiency, reducing intake restriction and allowing the engine to breathe more freely across the RPM range. The result is improved throttle response, better fuel economy under light loads, and measurable horsepower gains on engines where the factory air filter is a meaningful restriction.

OEM drop-in replacement filters are available for virtually every domestic and import vehicle, installing directly into the factory airbox without modification. The filter is cleaned, re-oiled, and reinstalled rather than replaced — K&N rates their filters for up to 50,000 miles between cleanings under normal driving conditions, eliminating the recurring cost of disposable paper filters over the life of the vehicle.

Cold Air Intake Systems

K&N cold air and short ram intake systems replace the factory airbox and intake tube with a larger-diameter, smoother-flowing intake path that routes incoming air away from underhood heat sources and into a high-flow conical filter element. The combination of increased tube diameter, reduced bends, and lower intake air temperature delivers more significant airflow and power gains than a drop-in filter alone — typically 10–25+ horsepower on naturally aspirated applications depending on the engine and existing intake restriction.

Intake systems are application-specific, engineered for correct MAF sensor placement, throttle body fitment, and heat shield integration on each supported platform. K&N's Typhoon and 57-Series intake systems are among the most popular bolt-on performance upgrades available for modern domestic and import performance vehicles.

Oil Filters

K&N's high-flow oil filters combine a larger filter media area with heavy-duty construction that outperforms OEM filters in both flow capacity and burst strength. The wrench-off nut welded to the end cap simplifies removal without a filter wrench, and the silicone anti-drain back valve maintains oil pressure at startup to protect bearings during cold starts. K&N oil filters are available for a wide range of domestic and import applications as a direct thread-on replacement for OEM units.

Common Applications

K&N produces filtration products for virtually every domestic and import vehicle platform — including Ford Mustang, F-150, and Focus ST/RS, Chevrolet Camaro, Corvette, and Silverado, Dodge Challenger, Charger, and Ram, Toyota Tacoma, Tundra, and Supra, Honda Civic and Accord, Subaru WRX and STI, BMW M-series, and hundreds of additional applications. K&N's application database is one of the most comprehensive in the filtration industry, covering current-model-year vehicles through vintage applications.

Reusability & Long-Term Value

Every K&N filter is designed to be cleaned and reused for the life of the vehicle. The K&N Recharger kit includes filter cleaner and filter oil for a complete service in under 30 minutes. Proper cleaning and re-oiling restores the filter to factory-new filtration efficiency and airflow performance. Over the ownership period of a vehicle, a single K&N filter replaces dozens of disposable paper filters — delivering long-term cost savings alongside consistent performance benefits.

Installation Notes

K&N drop-in replacement filters install directly into the factory airbox with no modification required. Cold air intake systems are bolt-on installations on most supported platforms, with complete hardware and instructions included. MAF sensor transfer from the factory intake tube is required on MAF-equipped vehicles — handle the sensor carefully to avoid damage during transfer. Allow the filter to dry completely after cleaning before re-oiling and reinstalling to prevent oil contamination of the MAF sensor, which can cause rich running conditions and fault codes.

Shop K&N at Ozkonic Kustomz

Browse the full K&N lineup below — drop-in air filters, cold air intakes, oil filters, and maintenance kits. If you need help identifying the correct filter or inta...

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    K&n Air Filter - Bbwq_e-1590
    $83.99 USD
    $83.99 USD
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    K&n Replacement Air Filter - Bbwq_e-0635
    $117.59 USD
    $117.59 USD
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    K&n Replacement Air Filter - Bbwq_33-5129
    $103.59 USD
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    K&n Oil Filter - Bbwq_ps-7007
    $9.99 USD
    $9.99 USD
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    K&n Oil Filter - Bbwq_kn-117
    $11.99 USD
    $11.99 USD
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    K&n Performance Air Intake - Bbwq_77-2618KC
    $662.19 USD
    $662.19 USD
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    K&n Air Intake System - Bbwq_69-1508TC
    $614.99 USD
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    K&n Replacement Air Filter - Bbwq_ya-9021
    $62.99 USD
    $62.99 USD
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    K&n Replacement Air Filter - Bbwq_ya-8518
    $146.99 USD
    $146.99 USD
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    K&n Replacement Air Filter - Bbwq_ya-8514
    $117.59 USD
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    K&n Replacement Air Filter - Bbwq_ya-7016
    $117.59 USD
    $117.59 USD
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    K&n Replacement Air Filter - Bbwq_ya-7006
    $146.99 USD
    $146.99 USD
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    K&n Replacement Air Filter AMAHA MT-07; 2014-2021 - Bbwq_ya-6814
    $117.59 USD
    $117.59 USD
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    K&n Replacement Air Filter-Y AMAHA YZF600R 96-07 - Bbwq_ya-6096
    $117.59 USD
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    K&n Replacement Air Filter - Bbwq_ya-6001
    $117.59 USD
    $117.59 USD
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    K&n Replacement Air Filter - Bbwq_ya-4350
    $117.59 USD
    $117.59 USD
    $117.59 USD
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