K&N Engineering 33-2304 High-Flow Drop-In Air Filter for Subaru Legacy and Impreza WRX/STi

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

• REDUCES WASTE: Over 200 million disposable air filters and their packaging waste wind up in landfills each year- reusable filters help reduce waste in our landfills
• Million Mile Limited Warranty

Upgrade your vehicle’s factory air intake system with the K&N Engineering 33-2304 High-Flow Air Filter. Designed as a direct drop-in replacement for the original equipment air filter, this reusable performance filter installs into the factory air box without requiring intake modifications. Its layered, oiled cotton media is engineered to promote increased airflow while capturing contaminants that can reduce engine performance and protection.

The K&N Engineering 33-2304 is washable and reusable, helping reduce the waste associated with disposable air filters. Built for long-term use, it is engineered to last for the life of the vehicle when properly maintained and is backed by K&N’s 10-Year/Million Mile Limited Warranty. For service, K&N recommends the 99-5000 Filter Care Service Kit Aerosol, sold separately.

Key Product Specifications and Technical Data

• Product Type: Reusable high-flow automotive air filter
• Brand: K&N Engineering
• Part Number: 33-2304
• Filter Media: Layered, oiled cotton gauze
• Installation: Direct drop-in replacement for the factory air box
• Serviceability: Washable and reusable
• Warranty: 10-Year/Million Mile Limited Warranty
• Maintenance Product: Compatible with K&N 99-5000 Filter Care Service Kit Aerosol

What's Included

• One K&N Engineering 33-2304 reusable high-flow air filter

Fitment: Designed for select 2005–2007 Subaru Legacy applications and select 2008–2011 Subaru Impreza WRX and STi applications. Confirm vehicle year, model, engine, and factory air box compatibility before installation.

Features:

• High-Flow Performance: Layered, oiled cotton media is engineered to improve airflow and support increased horsepower.
• Engine Protection: Helps capture contaminants while maintaining strong airflow to the engine.
• Reusable Design: Washable construction can be serviced and reused throughout the life of the vehicle.
• Easy Installation: Direct drop-in replacement installs into the factory air box without intake modifications.

Fitments:
2005 Subaru Legacy GT
2005 Subaru Legacy GT Limited
2005 Subaru Legacy i
2005 Subaru Legacy Limited
2005 Subaru Outback i
2005 Subaru Outback Limited
2005 Subaru Outback R
2005 Subaru Outback R L.L. Bean Edition
2005 Subaru Outback VDC Limited
2005 Subaru Outback XT
2005 Subaru Outback XT Limited
2006 Subaru B9 Tribeca Base
2006 Subaru B9 Tribeca Limited
2006 Subaru Legacy 2.5i
2006 Subaru Legacy GT
2006 Subaru Legacy GT spec.B
2006 Subaru Outback 2.5i
2006 Subaru Outback 2.5i Limited
2006 Subaru Outback R
2006 Subaru Outback R L.L. Bean Edition
2006 Subaru Outback R VDC Limited
2006 Subaru Outback XT
2006 Subaru Outback XT Limited
2007 Subaru B9 Tribeca Base
2007 Subaru B9 Tribeca Limited
2007 Subaru Legacy 2.5i
2007 Subaru Legacy 2.5i Limited
2007 Subaru Legacy 2.5i Special Edition
2007 Subaru Legacy GT Limited
2007 Subaru Legacy GT spec.B
2007 Subaru Outback 2.5i
2007 Subaru Outback 2.5i Basic
2007 Subaru Outback 2.5i Limited
2007 Subaru Outback R L.L. Bean Edition
2007 Subaru Outback XT Limited
2008 Subaru Impreza 2.5i
2008 Subaru Impreza Outback Sport
2008 Subaru Impreza WRX
2008 Subaru Impreza WRX STI
2008 Subaru Legacy 2.5i
2008 Subaru Legacy 2.5i Limited
2008 Subaru Legacy 2.5i Special Edition
2008 Subaru Legacy 3.0 R Limited
2008 Subaru Legacy GT Limited
2008 Subaru Legacy GT spec.B
2008 Subaru Outback 2.5i
2008 Subaru Outback 2.5i L.L. Bean Edition
2008 Subaru Outback 2.5i Limited
2008 Subaru Outback 2.5i Limited L.L. Bean Edition
2008 Subaru Outback Base
2008 Subaru Outback R L.L. Bean Edition
2008 Subaru Outback XT Limited
2008 Subaru Tribeca Base
2008 Subaru Tribeca Limited
2009 Subaru Forester X
2009 Subaru Forester X Limited
2009 Subaru Forester X Premium
2009 Subaru Forester XT
2009 Subaru Forester XT Limited
2009 Subaru Impreza 2.5 GT
2009 Subaru Impreza 2.5i
2009 Subaru Impreza Outback Sport
2009 Subaru Impreza WRX
2009 Subaru Impreza WRX Premium
2009 Subaru Impreza WRX STI
2009 Subaru Legacy 2.5i
2009 Subaru Legacy 2.5i Limited
2009 Subaru Legacy 2.5i Special Edition
2009 Subaru Legacy 3.0 R
2009 Subaru Legacy 3.0 R Limited
2009 Subaru Legacy GT Limited
2009 Subaru Legacy GT spec.B
2009 Subaru Outback 2.5i
2009 Subaru Outback 2.5i Limited
2009 Subaru Outback 2.5i Special Edition
2009 Subaru Outback 3.0 R Limited
2009 Subaru Outback XT Limited
2009 Subaru Tribeca Base
2009 Subaru Tribeca Limited
2010 Subaru Forester X
2010 Subaru Forester X Limited
2010 Subaru Forester X Premium
2010 Subaru Forester XT Limited
2010 Subaru Forester XT Premium
2010 Subaru Impreza 2.5 GT
2010 Subaru Impreza 2.5i
2010 Subaru Impreza 2.5i Premium
2010 Subaru Impreza Outback Sport
2010 Subaru Impreza WRX
2010 Subaru Impreza WRX Limited
2010 Subaru Impreza WRX Premium
2010 Subaru Impreza WRX STI
2010 Subaru Impreza WRX STI Special Edition
2010 Subaru Legacy 2.5GT
2010 Subaru Legacy 2.5i
2010 Subaru Legacy 2.5i Limited
2010 Subaru Legacy 2.5i Premium
2010 Subaru Legacy 3.6R
2010 Subaru Legacy 3.6R Limited
2010 Subaru Legacy 3.6R Premium
2010 Subaru Outback 2.5i
2010 Subaru Outback 2.5i Limited
2010 Subaru Outback 2.5i Premium
2010 Subaru Outback 3.6R
2010 Subaru Outback 3.6R Limited
2010 Subaru Outback 3.6R Premium
2010 Subaru Tribeca Limited
2010 Subaru Tribeca Premium
2010 Subaru Tribeca Touring
2011 Subaru Forester X
2011 Subaru Forester X Limited
2011 Subaru Forester X Premium
2011 Subaru Forester X Touring
2011 Subaru Forester XT Premium
2011 Subaru Forester XT Touring
2011 Subaru Impreza 2.5i
2011 Subaru Impreza 2.5i Premium
2011 Subaru Impreza Outback Sport
2011 Subaru Impreza WRX
2011 Subaru Impreza WRX Limited
2011 Subaru Impreza WRX Premium
2011 Subaru Impreza WRX STI
2011 Subaru Impreza WRX STI Limited
2011 Subaru Legacy 2.5GT
2011 Subaru Legacy 2.5i
2011 Subaru Legacy 2.5i Limited
2011 Subaru Legacy 2.5i Premium
2011 Subaru Legacy 3.6R
2011 Subaru Legacy 3.6R Limited
2011 Subaru Legacy 3.6R Premium
2011 Subaru Outback 2.5i
2011 Subaru Outback 2.5i Limited
2011 Subaru Outback 2.5i Premium
2011 Subaru Outback 3.6R
2011 Subaru Outback 3.6R Limited
2011 Subaru Outback 3.6R Premium
2011 Subaru Tribeca Limited
2011 Subaru Tribeca Premium
2011 Subaru Tribeca Touring
2012 Subaru Forester X
2012 Subaru Forester X Limited
2012 Subaru Forester X Premium
2012 Subaru Forester X Touring
2012 Subaru Forester XT Premium
2012 Subaru Forester XT Touring
2012 Subaru Impreza Base
2012 Subaru Impreza Limited
2012 Subaru Impreza Premium
2012 Subaru Impreza Sport Limited
2012 Subaru Impreza Sport Premium
2012 Subaru Impreza WRX
2012 Subaru Impreza WRX Limited
2012 Subaru Impreza WRX Premium
2012 Subaru Impreza WRX STI
2012 Subaru Impreza WRX STI Limited
2012 Subaru Legacy 2.5GT
2012 Subaru Legacy 2.5i
2012 Subaru Legacy 2.5i Limited
2012 Subaru Legacy 2.5i Premium
2012 Subaru Legacy 3.6R
2012 Subaru Legacy 3.6R Limited
2012 Subaru Legacy 3.6R Premium
2012 Subaru Outback 2.5i
2012 Subaru Outback 2.5i Limited
2012 Subaru Outback 2.5i Premium
2012 Subaru Outback 3.6R
2012 Subaru Outback 3.6R Limited
2012 Subaru Outback 3.6R Premium
2012 Subaru Tribeca Limited
2012 Subaru Tribeca Premium
2012 Subaru Tribeca Touring
2013 Subaru Forester X
2013 Subaru Forester X Limited
2013 Subaru Forester X Premium
2013 Subaru Forester X Touring
2013 Subaru Forester XT Premium
2013 Subaru Forester XT Touring
2013 Subaru Impreza Base
2013 Subaru Impreza Limited
2013 Subaru Impreza Premium
2013 Subaru Impreza Sport Limited
2013 Subaru Impreza Sport Premium
2013 Subaru Impreza WRX
2013 Subaru Impreza WRX Limited
2013 Subaru Impreza WRX Premium
2013 Subaru Impreza WRX STI
2013 Subaru Impreza WRX STI Limited
2013 Subaru Legacy 2.5i
2013 Subaru Legacy 2.5i Limited
2013 Subaru Legacy 2.5i Premium
2013 Subaru Legacy 3.6R
2013 Subaru Legacy 3.6R Limited
2013 Subaru Outback 2.5i
2013 Subaru Outback 2.5i Limited
2013 Subaru Outback 2.5i Premium
2013 Subaru Outback 3.6R
2013 Subaru Outback 3.6R Limited
2013 Subaru Tribeca Limited
2013 Subaru XV Crosstrek Limited
2013 Subaru XV Crosstrek Premium
2014 Subaru Forester 2.0XT Premium
2014 Subaru Forester 2.0XT Touring
2014 Subaru Forester 2.5i
2014 Subaru Forester 2.5i Limited
2014 Subaru Forester 2.5i Premium
2014 Subaru Forester 2.5i Touring
2014 Subaru Impreza Base
2014 Subaru Impreza Limited
2014 Subaru Impreza Premium
2014 Subaru Impreza Sport Limited
2014 Subaru Impreza Sport Premium
2014 Subaru Impreza WRX
2014 Subaru Impreza WRX Limited
2014 Subaru Impreza WRX Premium
2014 Subaru Impreza WRX STI
2014 Subaru Impreza WRX STI Limited
2014 Subaru Legacy 2.5i
2014 Subaru Legacy 2.5i Limited
2014 Subaru Legacy 2.5i Premium
2014 Subaru Legacy 2.5i Sport
2014 Subaru Legacy 3.6R Limited
2014 Subaru Outback 2.5i
2014 Subaru Outback 2.5i Limited
2014 Subaru Outback 2.5i Premium
2014 Subaru Outback 3.6R Limited
2014 Subaru Tribeca Limited
2014 Subaru XV Crosstrek Hybrid
2014 Subaru XV Crosstrek Hybrid Touring
2014 Subaru XV Crosstrek Limited
2014 Subaru XV Crosstrek Premium
2015 Subaru Forester 2.0XT Premium
2015 Subaru Forester 2.0XT Touring
2015 Subaru Forester 2.5i
2015 Subaru Forester 2.5i Limited
2015 Subaru Forester 2.5i Premium
2015 Subaru Forester 2.5i Touring
2015 Subaru Impreza Base
2015 Subaru Impreza Limited
2015 Subaru Impreza Premium
2015 Subaru Impreza Sport Limited
2015 Subaru Impreza Sport Premium
2015 Subaru Legacy 2.5i
2015 Subaru Legacy 2.5i Limited
2015 Subaru Legacy 2.5i Premium
2015 Subaru Legacy 3.6R Limited
2015 Subaru Outback 2.5i
2015 Subaru Outback 2.5i Limited
2015 Subaru Outback 2.5i Premium
2015 Subaru Outback 3.6R Limited
2015 Subaru WRX Base
2015 Subaru WRX Limited
2015 Subaru WRX Premium
2015 Subaru WRX STI Base
2015 Subaru WRX STI Launch Edition
2015 Subaru WRX STI Limited
2015 Subaru XV Crosstrek Base
2015 Subaru XV Crosstrek Hybrid
2015 Subaru XV Crosstrek Hybrid Touring
2015 Subaru XV Crosstrek Limited
2015 Subaru XV Crosstrek Premium
2016 Subaru Crosstrek Base
2016 Subaru Crosstrek Limited
2016 Subaru Crosstrek Premium
2016 Subaru Forester 2.0XT Premium
2016 Subaru Forester 2.0XT Touring
2016 Subaru Forester 2.5i
2016 Subaru Forester 2.5i Limited
2016 Subaru Forester 2.5i Premium
2016 Subaru Forester 2.5i Touring
2016 Subaru Impreza Base
2016 Subaru Impreza Limited
2016 Subaru Impreza Premium
2016 Subaru Impreza Sport Limited
2016 Subaru Impreza Sport Premium
2016 Subaru Legacy 2.5i
2016 Subaru Legacy 2.5i Limited
2016 Subaru Legacy 2.5i Premium
2016 Subaru Legacy 3.6R Limited
2016 Subaru Outback 2.5i
2016 Subaru Outback 2.5i Limited
2016 Subaru Outback 2.5i Premium
2016 Subaru Outback 3.6R Limited
2016 Subaru WRX Base
2016 Subaru WRX Limited
2016 Subaru WRX Premium
2016 Subaru WRX STI Base
2016 Subaru WRX STI Limited
2016 Subaru WRX STI Series.HyperBlue
2017 Subaru Crosstrek Base
2017 Subaru Crosstrek Limited
2017 Subaru Crosstrek Premium
2017 Subaru Forester 2.0XT Premium
2017 Subaru Forester 2.0XT Touring
2017 Subaru Forester 2.5i
2017 Subaru Forester 2.5i Limited
2017 Subaru Forester 2.5i Premium
2017 Subaru Forester 2.5i Touring
2017 Subaru Legacy 2.5i
2017 Subaru Legacy 2.5i Limited
2017 Subaru Legacy 2.5i Premium
2017 Subaru Legacy 2.5i Sport
2017 Subaru Legacy 3.6R Limited
2017 Subaru Outback 2.5i
2017 Subaru Outback 2.5i Limited
2017 Subaru Outback 2.5i Premium
2017 Subaru Outback 2.5i Touring
2017 Subaru Outback 3.6R Limited
2017 Subaru Outback 3.6R Touring
2017 Subaru WRX Base
2017 Subaru WRX Limited
2017 Subaru WRX Premium
2017 Subaru WRX STI Base
2017 Subaru WRX STI Limited
2018 Subaru Forester 2.0XT Premium
2018 Subaru Forester 2.0XT Touring
2018 Subaru Forester 2.5i
2018 Subaru Forester 2.5i Limited
2018 Subaru Forester 2.5i Premium
2018 Subaru Forester 2.5i Touring
2018 Subaru Legacy 2.5i
2018 Subaru Legacy 2.5i Limited
2018 Subaru Legacy 2.5i Premium
2018 Subaru Legacy 2.5i Sport
2018 Subaru Legacy 3.6R Limited
2018 Subaru Outback 2.5i
2018 Subaru Outback 2.5i Limited
2018 Subaru Outback 2.5i Premium
2018 Subaru Outback 2.5i Touring
2018 Subaru Outback 3.6R Limited
2018 Subaru Outback 3.6R Touring
2018 Subaru WRX Base
2018 Subaru WRX Limited
2018 Subaru WRX Premium
2018 Subaru WRX STI Base
2018 Subaru WRX STI Limited
2018 Subaru WRX STI Type RA
2019 Subaru Legacy 2.5i
2019 Subaru Legacy 2.5i Limited
2019 Subaru Legacy 2.5i Premium
2019 Subaru Legacy 2.5i Sport
2019 Subaru Legacy 3.6R Limited
2019 Subaru Outback 2.5i
2019 Subaru Outback 2.5i Limited
2019 Subaru Outback 2.5i Premium
2019 Subaru Outback 2.5i Touring
2019 Subaru Outback 3.6R Limited
2019 Subaru Outback 3.6R Touring
2019 Subaru WRX Base
2019 Subaru WRX Limited
2019 Subaru WRX Premium
2020 Subaru WRX Base
2020 Subaru WRX Limited
2020 Subaru WRX Premium
2021 Subaru WRX Base
2021 Subaru WRX Limited
2021 Subaru WRX Premium

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