K&N Engineering 33-2209 High-Flow Drop-In Air Filter for 2003-2009 Audi A4 Models

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.

• CLEAN ONCE EVERY 5 YEARS: Engine air filter only needs cleaning every 75,000 miles under normal highway driving conditions (5 years based on the average miles driven per year of 15,000 miles)
• Million Mile Limited Warranty

Upgrade your Audi A4 with the K&N 01-09 Audi A4/RS4/S4 Drop-In Air Filter, part number 33-2209, designed to deliver superior airflow and engine performance. Crafted with layered, oiled cotton media, this high-flow air filter enhances horsepower and optimizes engine efficiency by allowing more air to reach the combustion chambers. The precision fit ensures a straightforward installation into your factory air box, making it an ideal upgrade for maintaining or improving your vehicle's performance.
Constructed for durability and reusability, the K&N High-Flow Air Filter is engineered to last for the entire lifespan of your vehicle. Its washable design means you can clean it every 75,000 miles under normal highway driving conditions, which translates to once every 5 years for most drivers, saving you money and reducing waste. Backed by K&N's 10-Year/Million Mile Limited Warranty, this filter offers peace of mind with a lifetime of performance benefits.
Designed with environmental and safety considerations in mind, the filter complies with Prop 65 standards and does not require special handling beyond routine maintenance. Its high-quality materials and meticulous craftsmanship ensure consistent filtration efficiency, protecting your engine from contaminants while maintaining optimal airflow. Whether you're looking to boost horsepower or extend the life of your factory air intake system, this K&N filter is an excellent choice for 2003-2009 Audi A4 models, including Quattro and non-Quattro variants, providing reliable performance for years to come.

Features:

• Layered, oiled cotton media for superior airflow and contaminant capture

• Reusability with cleaning recommended every 75,000 miles

• Easy installation as a direct drop-in replacement for factory air boxes

• Designed to increase horsepower and engine efficiency

• Durable construction backed by a 10-Year/Million Mile Limited Warranty

• Proven performance for 2003-2009 Audi A4 models, including Quattro versions

Fitment:
2002 Audi A4 Base
2002 Audi A4 Quattro Avant
2002 Audi A4 Quattro Base
2003 Audi A4 Base
2003 Audi A4 Cabriolet
2003 Audi A4 Quattro Avant
2003 Audi A4 Quattro Base
2004 Audi A4 Base
2004 Audi A4 Cabriolet
2004 Audi A4 Quattro Avant
2004 Audi A4 Quattro Base
2004 Audi A4 Quattro Cabriolet
2004 Audi S4 Avant
2004 Audi S4 Base
2004 Audi S4 Cabriolet
2005 Audi A4 Base
2005 Audi A4 Cabriolet
2005 Audi A4 Quattro Avant
2005 Audi A4 Quattro Base
2005 Audi A4 Quattro Cabriolet
2005 Audi S4 Avant
2005 Audi S4 Base
2005 Audi S4 Cabriolet
2006 Audi A4 Base
2006 Audi A4 Cabriolet
2006 Audi A4 Quattro Avant
2006 Audi A4 Quattro Base
2006 Audi A4 Quattro Cabriolet
2006 Audi S4 Avant
2006 Audi S4 Base
2006 Audi S4 Cabriolet
2007 Audi A4 Base
2007 Audi A4 Cabriolet
2007 Audi A4 Quattro Avant
2007 Audi A4 Quattro Base
2007 Audi A4 Quattro Cabriolet
2007 Audi RS4 Base
2007 Audi S4 Avant
2007 Audi S4 Base
2007 Audi S4 Cabriolet
2008 Audi A4 Base
2008 Audi A4 Cabriolet
2008 Audi A4 Quattro Avant
2008 Audi A4 Quattro Base
2008 Audi A4 Quattro Cabriolet
2008 Audi RS4 Base
2008 Audi RS4 Cabriolet
2008 Audi S4 Avant
2008 Audi S4 Base
2008 Audi S4 Cabriolet
2009 Audi A4 Cabriolet
2009 Audi A4 Quattro Cabriolet
2009 Audi S4 Cabriolet

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