How often should I clean my K&N air filter?

K&N recommends cleaning and re-oiling your filter every 50,000 miles for normal highway use. If you drive in dusty conditions, you may need to clean it more often. Use a K&N filter cleaning kit to maintain the filter's performance.

Does this filter require oiling?

Yes, this is an oiled cotton air filter. It arrives pre-oiled and ready to install. You'll need to re-oil it after cleaning to maintain its filtration properties.

Will this filter void my vehicle's warranty?

Using a K&N replacement air filter will not void your new car warranty. K&N air filters are designed to meet or exceed OEM specifications, and the Magnuson-Moss Warranty Act protects your right to use aftermarket parts.

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Specifications

Brand: K&N
Part #: 33-2399
UPC: 024844199782
Package Length: 7.7 in
Package Width: 1.8 in
Package Height: 9.7 in
Package Weight: 0.85 lb
Interchange Part Numbers: Bosch F026400056, ACDelco A3674C, FRAM CA10544, Purolator A35824, Wix 49362, LUBER-FINER AF4038, Service Champ AF5824, Mann-Filter C1880, BMC FB48320, Datsun/Nissan 16546JK20A, Datsun/Nissan AY120NS050, Fiat 71743887

K&N 07-09 350z/370z/G35/G37 Drop In Air Filter

Name: K&N 07-09 350z/370z/G35/G37 Drop In Air Filter
Brand: K&N
SKU: k-n-engineering-k-n-07-09-350z-370z-g35-g37-drop-in-air-filter-t14-8040
Price: 73.47 USD
Availability: InStock

$73.47

In Stock

Washable and reusable air filter. Drop it in for improved airflow and engine protection.

Key Features

Washable — save money on replacement filters
Drop-in replacement — installs easily in the factory air box
Oiled cotton gauze media — better airflow than paper filters
10-Year/Million Mile Limited Warranty — K&N stands behind their filters

⚠️ CA WARNING: This product can expose you to chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm. Learn more

No-fit, no charge. Wrong part? Send it back, free return label.

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Will it fit your car?

About this part

Product Details

K&N washable, reusable High-Flow Air Filters feature a state-of-the-art design of layered, oiled cotton media engineered to improve airflow and capture contaminants, and are designed to provide an increase in horsepower. Each performance air filter is reusable, engineered to last for the entire lifespan of your vehicle, and backed by K&N's No-Hassle Lifetime Limited Warranty. K&N drop-in replacement filters are designed to install easily into your factory air box. Upgrade today and start enjoying superior airflow and superior performance from K&N's most popular product!

Description

K&N's replacement High-Flow Air Filters are designed to increase horsepower while providing exceptional engine protection, and are covered by K&N's No-Hassle Lifetime Limited Warranty.

Specifications

Brand: K&N
Manufacturer Part #: 33-2399
UPC: 024844199782
Package Length: 7.7 in
Package Width: 1.8 in
Package Height: 9.7 in
Package Weight: 0.85 lb
Interchange Part Numbers: Bosch F026400056, ACDelco A3674C, FRAM CA10544, Purolator A35824, Wix 49362, LUBER-FINER AF4038, Service Champ AF5824, Mann-Filter C1880, BMC FB48320, Datsun/Nissan 16546JK20A, Datsun/Nissan AY120NS050, Fiat 71743887