K&N Engineering 33-2473 High-Flow Replacement Air Filter for Honda Civic and Acura Applications

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'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. Associated products: 99-5000 Filter Care Service Kit Aerosol

• ULTIMATE LONGEVITY: No-hassle lifetime limited warranty on stock replacement K&N air filters- limitations apply
• Million Mile Limited Warranty

Upgrade your vehicle’s factory air intake system with the K&N Engineering 33-2473 High-Flow Replacement Air Filter. Designed as a direct-fit replacement for the original equipment filter, this washable and reusable air filter installs easily into the factory air box without requiring major modifications. Its layered, oiled cotton media is engineered to increase airflow while capturing contaminants that can reduce engine performance.

The K&N 33-2473 air filter is built for long-term use and is designed to last for the lifespan of your vehicle when properly serviced with an appropriate K&N Filter Care Service Kit. By improving airflow and maintaining effective engine protection, it can support increased horsepower and responsive performance. This automotive replacement filter is backed by K&N’s No-Hassle Lifetime Limited Warranty and Million Mile Limited Warranty, subject to applicable limitations.

Fitment: The K&N Engineering 33-2473 fits select 2012–2015 Honda Civic models, including the Civic Si, as well as select 2013–2015 Acura ILX and 2017–2019 Acura NSX applications. Confirm vehicle year, make, model, and engine configuration before ordering. The associated K&N 99-5000 Filter Care Service Kit Aerosol is recommended for cleaning and re-oiling the filter during maintenance.

This product is intended for automotive use and is designed to provide a reliable, reusable alternative to disposable factory-style air filters. It is not identified as California Air Resources Board approved; verify local emissions requirements before installation.

Features:

• High-Flow Airflow: Layered, oiled cotton filter media is engineered to improve airflow for enhanced engine breathing and performance.
• Reusable Construction: Washable filter design can be serviced and reused throughout the life of the vehicle.
• Engine Protection: Designed to capture contaminants while supporting strong airflow to the engine.
• Direct-Fit Installation: Engineered to install easily into the factory air box as a replacement for the original air filter.

Fitments:
2012 Honda Civic Si
2013 Acura ILX Base
2013 Honda Civic Si
2014 Acura ILX Base
2014 Honda Civic Si
2015 Acura ILX Base
2015 Honda Civic Si
2017 Acura NSX Base
2018 Acura NSX Base
2019 Acura NSX Base
2020 Acura NSX Base
2021 Acura NSX Base
2022 Acura NSX Type S

Air Freight Prohibited: false
Not Carb Approved: false
Ltl Freight Required: false
Prop 65: Y
Part Type: automotive
Epa: N/A
Carb Acknowledgement Required: false
Regular Stock: t
Units Per Sku: 1