K&N 33-2209 Drop In Air Filter — Fits 01-09 Audi A4/S4, 07-08 RS4

SKU: KNN33-2209
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Sale price$64.99
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Car Wheel Size Chart

Wheel Diameter (inches) Tire Width (mm) Aspect Ratio Rim Width (inches)
14185655.5
15195606.0
16205556.5
17215507.0
18225457.5
19235408.0
20245358.5

Note: Wheel and tire sizes vary by car make and model. Always consult your vehicle’s manufacturer for exact specifications.

How to Read Tire Size

Example: 225/45R17 means:

  • 225 = Tire width in mm
  • 45 = Aspect ratio (height as % of width)
  • R17 = Rim diameter in inches

Product Details

Product Description
Part Numbers
Sizing & Fit

About K&N Engineering

K&N has been the world's leader in washable, reusable performance air filters since 1969. From the legendary cone filter to complete cold-air intake systems, K&N's cotton-gauze element delivers more airflow than paper while staying serviceable for the life of the vehicle.

Watch in action

K&N 33-2209 High-Flow Replacement Air Filter for Audi

Experience enhanced performance in your Audi with the K&N 33-2209 High-Flow Replacement Air Filter. This premium filter is meticulously designed to increase airflow to your engine, resulting in improved horsepower and acceleration. Utilizing K&N's renowned layered, oiled cotton media, it effectively captures airborne contaminants while allowing for maximum air intake, crucial for optimal engine function.

Key Benefits of the K&N 33-2209:

  • Performance Enhancement: Engineered to deliver a noticeable increase in horsepower and torque.
  • Washable and Reusable: A sustainable choice, this filter can be cleaned and reused multiple times, providing long-term value.
  • Exceptional Durability: Built to last the lifetime of your vehicle and backed by K&N's 10-Year/Million Mile Limited Warranty.
  • Direct Fit Installation: Designed as a direct replacement for your factory air filter, ensuring a simple and quick installation process.
  • Superior Filtration: Protects your engine by trapping harmful particles and debris effectively.

Vehicle Fitment Guide:

This K&N 33-2209 air filter is compatible with the following Audi models:

  • Audi A4: 2002-2008 (Base, Cabriolet)
  • Audi A4 Quattro: 2002-2009 (Avant, Base, Cabriolet)
  • Audi RS4: 2007-2008 (Base, Cabriolet)
  • Audi S4: 2004-2008 (Avant, Base)

Upgrade your Audi's air intake system with the K&N 33-2209 filter from GGCRACING for superior performance and engine protection.

Vehicle Fitment

Years Make Model Trim
2002-2008 Audi A4 Base
2003-2009 Audi A4 Cabriolet
2002-2008 Audi A4 Quattro Avant
2002-2008 Audi A4 Quattro Base
2004-2009 Audi A4 Quattro Cabriolet
2007-2008 Audi RS4 Base
2008 Audi RS4 Cabriolet
2004-2008 Audi S4 Avant
2004-2008 Audi S4 Base

Product Details

Product Description
Part Numbers
Sizing & Fit

About K&N Engineering

K&N has been the world's leader in washable, reusable performance air filters since 1969. From the legendary cone filter to complete cold-air intake systems, K&N's cotton-gauze element delivers more airflow than paper while staying serviceable for the life of the vehicle.

Watch in action

K&N 33-2209 High-Flow Replacement Air Filter for Audi

Experience enhanced performance in your Audi with the K&N 33-2209 High-Flow Replacement Air Filter. This premium filter is meticulously designed to increase airflow to your engine, resulting in improved horsepower and acceleration. Utilizing K&N's renowned layered, oiled cotton media, it effectively captures airborne contaminants while allowing for maximum air intake, crucial for optimal engine function.

Key Benefits of the K&N 33-2209:

  • Performance Enhancement: Engineered to deliver a noticeable increase in horsepower and torque.
  • Washable and Reusable: A sustainable choice, this filter can be cleaned and reused multiple times, providing long-term value.
  • Exceptional Durability: Built to last the lifetime of your vehicle and backed by K&N's 10-Year/Million Mile Limited Warranty.
  • Direct Fit Installation: Designed as a direct replacement for your factory air filter, ensuring a simple and quick installation process.
  • Superior Filtration: Protects your engine by trapping harmful particles and debris effectively.

Vehicle Fitment Guide:

This K&N 33-2209 air filter is compatible with the following Audi models:

  • Audi A4: 2002-2008 (Base, Cabriolet)
  • Audi A4 Quattro: 2002-2009 (Avant, Base, Cabriolet)
  • Audi RS4: 2007-2008 (Base, Cabriolet)
  • Audi S4: 2004-2008 (Avant, Base)

Upgrade your Audi's air intake system with the K&N 33-2209 filter from GGCRACING for superior performance and engine protection.

Vehicle Fitment

Years Make Model Trim
2002-2008 Audi A4 Base
2003-2009 Audi A4 Cabriolet
2002-2008 Audi A4 Quattro Avant
2002-2008 Audi A4 Quattro Base
2004-2009 Audi A4 Quattro Cabriolet
2007-2008 Audi RS4 Base
2008 Audi RS4 Cabriolet
2004-2008 Audi S4 Avant
2004-2008 Audi S4 Base

Product Details

Product Description

About K&N Engineering

K&N has been the world's leader in washable, reusable performance air filters since 1969. From the legendary cone filter to complete cold-air intake systems, K&N's cotton-gauze element delivers more airflow than paper while staying serviceable for the life of the vehicle.

Watch in action

K&N 33-2209 High-Flow Replacement Air Filter for Audi

Experience enhanced performance in your Audi with the K&N 33-2209 High-Flow Replacement Air Filter. This premium filter is meticulously designed to increase airflow to your engine, resulting in improved horsepower and acceleration. Utilizing K&N's renowned layered, oiled cotton media, it effectively captures airborne contaminants while allowing for maximum air intake, crucial for optimal engine function.

Key Benefits of the K&N 33-2209:

  • Performance Enhancement: Engineered to deliver a noticeable increase in horsepower and torque.
  • Washable and Reusable: A sustainable choice, this filter can be cleaned and reused multiple times, providing long-term value.
  • Exceptional Durability: Built to last the lifetime of your vehicle and backed by K&N's 10-Year/Million Mile Limited Warranty.
  • Direct Fit Installation: Designed as a direct replacement for your factory air filter, ensuring a simple and quick installation process.
  • Superior Filtration: Protects your engine by trapping harmful particles and debris effectively.

Vehicle Fitment Guide:

This K&N 33-2209 air filter is compatible with the following Audi models:

  • Audi A4: 2002-2008 (Base, Cabriolet)
  • Audi A4 Quattro: 2002-2009 (Avant, Base, Cabriolet)
  • Audi RS4: 2007-2008 (Base, Cabriolet)
  • Audi S4: 2004-2008 (Avant, Base)

Upgrade your Audi's air intake system with the K&N 33-2209 filter from GGCRACING for superior performance and engine protection.

Vehicle Fitment

Years Make Model Trim
2002-2008 Audi A4 Base
2003-2009 Audi A4 Cabriolet
2002-2008 Audi A4 Quattro Avant
2002-2008 Audi A4 Quattro Base
2004-2009 Audi A4 Quattro Cabriolet
2007-2008 Audi RS4 Base
2008 Audi RS4 Cabriolet
2004-2008 Audi S4 Avant
2004-2008 Audi S4 Base

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