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

The cleaning interval depends on your driving conditions. K&N recommends inspecting the filter every 25,000 miles and cleaning it when it's visibly dirty. Off-road driving requires more frequent cleaning.

Do I need to oil the filter after cleaning?

Yes, K&N air filters use a special oil to help trap dirt and improve filtration. After cleaning, let the filter dry completely and then re-oil it evenly with K&N filter oil.

What kind of warranty does this filter have?

K&N backs this filter with their No-Hassle Lifetime Limited Warranty. This means they will replace the filter if it's defective in materials or workmanship.

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Specifications

Brand: K&N
Part #: 33-2459
UPC: 024844285614

K&N 11 Honda CR-Z 1.5L-L4 Drop In Air Filter

Name: K&N 11 Honda CR-Z 1.5L-L4 Drop In Air Filter
Brand: K&N
SKU: k-n-engineering-k-n-11-honda-cr-z-1-5l-l4-drop-in-air-filter-t14-236169
Price: 70.71 USD
Availability: BackOrder

$70.71

On Backorder — Expected to ship by May 24, 2026

Order now to reserve yours — we'll ship as soon as stock arrives. Full refund if we're unable to fulfill.

Reusable K&N air filter improves airflow to your 2011 Honda CR-Z 1.5L. Drop-in replacement.

Key Features

Washable and reusable — saves money on replacement filters
Oiled cotton media — strong airflow and filtration
Direct drop-in replacement — fits right in the factory airbox

⚠️ 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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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 10-Year/Million Mile 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!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!