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K&N Air Filters - The World's Best Air Filter

K&N Air Filters for the Audi A4


Audi A4 Replacement Air Filters 

  • High Air Flow with Excellent Filtration
  • Designed to Increase Horsepower and Acceleration
  • K&N Million Mile Limited Warranty® 
  • Will NOT Void Vehicle Warranty
  • Lasts up to 50,000 Miles Before Cleaning is Required Depending on Driving Conditions

Buy a K&N air filter. Your Audi A4 will thank you. 

 Click Here to Find K&N Air Filters, Oil Filters & Air Intakes for any Vehicle!
Vehicle Description Type Product Part Number Product Image
2009 AUDI A4 1.8L L4 F/I - All Automotive Air Filter 33-2945
 		Buy
33-2945.jpg
2009 AUDI A4 2.0L L4 DSL - All Automotive Air Filter 33-2945
 		Buy
33-2945.jpg
2009 AUDI A4 2.0L L4 F/I - All Automotive Air Filter 33-2945
 		Buy
33-2945.jpg
2009 AUDI A4 2.7L V6 DSL - All Automotive Air Filter E-1987
 		Buy
E-1987.jpg
2009 AUDI A4 3.0L V6 DSL - All Automotive Air Filter E-1987
 		Buy
E-1987.jpg
2009 AUDI A4 4.2L V8 F/I - All Automotive Air Filter E-1987
 		Buy
E-1987.jpg
2009 AUDI A4 Quattro 3.2L V6 F/I - Non-US Automotive Air Filter E-1987
 		Buy
E-1987.jpg
2008 AUDI A4 3.0L V6 F/I - All Automotive Air Filter 33-2209
 		Buy
33-2209.jpg
2008 AUDI A4 2.0L L4 F/I - US Automotive Air Filter 33-2209
 		Buy
33-2209.jpg
2008 AUDI A4 2.4L V6 F/I - All Automotive Air Filter 33-2209
 		Buy
33-2209.jpg
2008 AUDI A4 1.8L L4 F/I - All Automotive Air Filter 33-2945
 		Buy
33-2945.jpg
2008 AUDI A4 2.0L L4 DSL - All Automotive Air Filter 33-2945
 		Buy
33-2945.jpg
2008 AUDI A4 2.7L V6 DSL - All Automotive Air Filter E-1987
 		Buy
E-1987.jpg
2008 AUDI A4 3.0L V6 DSL - All Automotive Air Filter E-1987
 		Buy
E-1987.jpg
2008 AUDI A4 4.2L V8 F/I - All Automotive Air Filter E-1987
 		Buy
E-1987.jpg
2008 AUDI A4 Quattro 2.0L L4 F/I - US Automotive Air Filter 33-2209
 		Buy
33-2209.jpg
2008 AUDI A4 Quattro 3.2L V6 F/I - US Automotive Air Filter 33-2209
 		Buy
33-2209.jpg
2008 AUDI A4 Quattro 3.2L V6 F/I - EU Automotive Air Filter E-1987
 		Buy
E-1987.jpg
2007 AUDI A4 1.9L L4 DSL - All Automotive Air Filter 33-2209
 		Buy
33-2209.jpg
2007 AUDI A4 2.0L L4 DSL - Exc., 143BHP Automotive Air Filter 33-2209
 		Buy
33-2209.jpg
2007 AUDI A4 2.0L L4 F/I - All Automotive Air Filter 33-2209
 		Buy
33-2209.jpg
2007 AUDI A4 2.4L V6 F/I - All Automotive Air Filter 33-2209
 		Buy
33-2209.jpg
2007 AUDI A4 2.7L V6 DSL - All Automotive Air Filter 33-2209
 		Buy
33-2209.jpg
2007 AUDI A4 3.0L V6 DSL - All Automotive Air Filter 33-2209
 		Buy
33-2209.jpg
2007 AUDI A4 3.0L V6 F/I - All Automotive Air Filter 33-2209
 		Buy
33-2209.jpg
2007 AUDI A4 3.2L V6 F/I - All Automotive Air Filter 33-2209
 		Buy
33-2209.jpg
2007 AUDI A4 1.6L L4 F/I - All Automotive Air Filter 33-2209
 		Buy
33-2209.jpg
2007 AUDI A4 1.8L L4 F/I - 163BHP Automotive Air Filter 33-2209
 		Buy
33-2209.jpg
2007 AUDI A4 1.8L L4 F/I - Exc., 163BHP Automotive Air Filter 33-2945
 		Buy
33-2945.jpg
2007 AUDI A4 2.0L L4 DSL - 143BHP Automotive Air Filter 33-2945
 		Buy
33-2945.jpg
2007 AUDI A4 Quattro 2.0L L4 F/I - All Automotive Air Filter 33-2209
 		Buy
33-2209.jpg
2007 AUDI A4 Quattro 3.2L V6 F/I - All Automotive Air Filter 33-2209
 		Buy
33-2209.jpg
2006 AUDI A4 1.6L L4 F/I - All Automotive Air Filter 33-2209
 		Buy
33-2209.jpg
2006 AUDI A4 1.8L L4 F/I - All Automotive Air Filter 33-2209
 		Buy
33-2209.jpg
2006 AUDI A4 1.9L L4 DSL - All Automotive Air Filter 33-2209
 		Buy
33-2209.jpg
2006 AUDI A4 2.0L L4 DSL - All Automotive Air Filter 33-2209
 		Buy
33-2209.jpg
2006 AUDI A4 2.0L L4 F/I - All Automotive Air Filter 33-2209
 		Buy
33-2209.jpg
2006 AUDI A4 2.4L V6 F/I - All Automotive Air Filter 33-2209
 		Buy
33-2209.jpg
2006 AUDI A4 2.7L V6 DSL - All Automotive Air Filter 33-2209
 		Buy
33-2209.jpg
2006 AUDI A4 3.0L V6 DSL - All Automotive Air Filter 33-2209
 		Buy
33-2209.jpg
2006 AUDI A4 3.2L V6 F/I - All Automotive Air Filter 33-2209
 		Buy
33-2209.jpg
2006 AUDI A4 Quattro 2.0L L4 F/I - All Automotive Air Filter 33-2209
 		Buy
33-2209.jpg
2006 AUDI A4 Quattro 3.0L V6 F/I - All Automotive Air Filter 33-2209
 		Buy
33-2209.jpg
2006 AUDI A4 Quattro 3.2L V6 F/I - All Automotive Air Filter 33-2209
 		Buy
33-2209.jpg
2005 AUDI A4 1.6L L4 F/I - All Automotive Air Filter 33-2209
 		Buy
33-2209.jpg
2005 AUDI A4 1.8L L4 F/I - All Automotive Air Filter 33-2209
 		Buy
33-2209.jpg
2005 AUDI A4 1.9L L4 DSL - All Automotive Air Filter 33-2209
 		Buy
33-2209.jpg
2005 AUDI A4 2.0L L4 DSL - All Automotive Air Filter 33-2209
 		Buy
33-2209.jpg
2005 AUDI A4 2.0L L4 F/I - All Automotive Air Filter 33-2209
 		Buy
33-2209.jpg
2005 AUDI A4 2.4L V6 F/I - All Automotive Air Filter 33-2209
 		Buy
33-2209.jpg
2005 AUDI A4 2.5L V6 DSL - All Automotive Air Filter 33-2209
 		Buy
33-2209.jpg
2005 AUDI A4 2.7L V6 DSL - All Automotive Air Filter 33-2209
 		Buy
33-2209.jpg
2005 AUDI A4 3.0L V6 DSL - All Automotive Air Filter 33-2209
 		Buy
33-2209.jpg
2005 AUDI A4 3.0L V6 F/I - All Automotive Air Filter 33-2209
 		Buy
33-2209.jpg
2005 AUDI A4 3.2L V6 F/I - All Automotive Air Filter 33-2209
 		Buy
33-2209.jpg
2005 AUDI A4 Quattro 1.8L L4 F/I - All Automotive Air Filter 33-2209
 		Buy
33-2209.jpg
2005 AUDI A4 Quattro 2.0L L4 F/I - All Automotive Air Filter 33-2209
 		Buy
33-2209.jpg
2005 AUDI A4 Quattro 3.0L V6 F/I - All Automotive Air Filter 33-2209
 		Buy
33-2209.jpg
2005 AUDI A4 Quattro 3.2L V6 F/I - All Automotive Air Filter 33-2209
 		Buy
33-2209.jpg
2004 AUDI A4 1.6L L4 F/I - All Automotive Air Filter 33-2209
 		Buy
33-2209.jpg
2004 AUDI A4 1.8L L4 F/I - All Automotive Air Filter 33-2209
 		Buy
33-2209.jpg
2004 AUDI A4 1.9L L4 DSL - All Automotive Air Filter 33-2209
 		Buy
33-2209.jpg
2004 AUDI A4 2.0L L4 DSL - All Automotive Air Filter 33-2209
 		Buy
33-2209.jpg
2004 AUDI A4 2.0L L4 F/I - All Automotive Air Filter 33-2209
 		Buy
33-2209.jpg
2004 AUDI A4 2.4L V6 F/I - All Automotive Air Filter 33-2209
 		Buy
33-2209.jpg
2004 AUDI A4 2.5L V6 DSL - All Automotive Air Filter 33-2209
 		Buy
33-2209.jpg
2004 AUDI A4 3.0L V6 DSL - All Automotive Air Filter 33-2209
 		Buy
33-2209.jpg
2004 AUDI A4 3.0L V6 F/I - All Automotive Air Filter 33-2209
 		Buy
33-2209.jpg
2004 AUDI A4 Quattro 1.8L L4 F/I - All Automotive Air Filter 33-2209
 		Buy
33-2209.jpg
2004 AUDI A4 Quattro 3.0L V6 F/I - All Automotive Air Filter 33-2209
 		Buy
33-2209.jpg
2003 AUDI A4 2.7L V6 F/I - All Automotive Air Filter 33-2125
 		Buy
33-2125.jpg
2003 AUDI A4 3.0L V6 F/I - All Automotive Air Filter 33-2209
 		Buy
33-2209.jpg
2003 AUDI A4 1.6L L4 F/I - All Automotive Air Filter 33-2209
 		Buy
33-2209.jpg
2003 AUDI A4 1.8L L4 F/I - All Automotive Air Filter 33-2209
 		Buy
33-2209.jpg
2003 AUDI A4 1.9L L4 DSL - All Automotive Air Filter 33-2209
 		Buy
33-2209.jpg
2003 AUDI A4 2.0L L4 F/I - All Automotive Air Filter 33-2209
 		Buy
33-2209.jpg
2003 AUDI A4 2.4L V6 F/I - All Automotive Air Filter 33-2209
 		Buy
33-2209.jpg
2003 AUDI A4 2.5L V6 DSL - All Automotive Air Filter 33-2209
 		Buy
33-2209.jpg
2003 AUDI A4 Quattro 1.8L L4 F/I - All Automotive Air Filter 33-2209
 		Buy
33-2209.jpg
2003 AUDI A4 Quattro 3.0L V6 F/I - All Automotive Air Filter 33-2209
 		Buy
33-2209.jpg
2002 AUDI A4 2.7L V6 F/I - All Automotive Air Filter 33-2125
 		Buy
33-2125.jpg
2002 AUDI A4 3.0L V6 F/I - All Automotive Air Filter 33-2209
 		Buy
33-2209.jpg
2002 AUDI A4 1.6L L4 F/I - All Automotive Air Filter 33-2209
 		Buy
33-2209.jpg
2002 AUDI A4 1.8L L4 F/I - All Automotive Air Filter 33-2209
 		Buy
33-2209.jpg
2002 AUDI A4 1.9L L4 DSL - All Automotive Air Filter 33-2209
 		Buy
33-2209.jpg
2002 AUDI A4 2.0L L4 F/I - All Automotive Air Filter 33-2209
 		Buy
33-2209.jpg
2002 AUDI A4 2.4L V6 F/I - All Automotive Air Filter 33-2209
 		Buy
33-2209.jpg
2002 AUDI A4 2.5L V6 DSL - All Automotive Air Filter 33-2209
 		Buy
33-2209.jpg
2002 AUDI A4 Quattro 1.8L L4 F/I - All Automotive Air Filter 33-2209
 		Buy
33-2209.jpg
2002 AUDI A4 Quattro 3.0L V6 F/I - All Automotive Air Filter 33-2209
 		Buy
33-2209.jpg
2001 AUDI A4 2.6L V6 F/I - All Automotive Air Filter 33-2125
 		Buy
33-2125.jpg
2001 AUDI A4 2.7L V6 F/I - All Automotive Air Filter 33-2125
 		Buy
33-2125.jpg
2001 AUDI A4 2.8L V6 F/I - All Automotive Air Filter 33-2125
 		Buy
33-2125.jpg
2001 AUDI A4 1.8L L4 F/I - All Automotive Air Filter 33-2125
 		Buy
33-2125.jpg
2001 AUDI A4 2.4L V6 F/I - All Automotive Air Filter 33-2125
 		Buy
33-2125.jpg
2001 AUDI A4 2.5L V6 DSL - 150BHP Automotive Air Filter 33-2125
 		Buy
33-2125.jpg
2001 AUDI A4 2.5L V6 DSL - 155/163/180BHP Automotive Air Filter 33-2209
 		Buy
33-2209.jpg
2001 AUDI A4 1.6L L4 F/I - All Automotive Air Filter 33-2209
 		Buy
33-2209.jpg
2001 AUDI A4 1.9L L4 DSL - All Automotive Air Filter 33-2209
 		Buy
33-2209.jpg
2001 AUDI A4 2.0L L4 F/I - All Automotive Air Filter 33-2209
 		Buy
33-2209.jpg
2001 AUDI A4 3.0L V6 F/I - All Automotive Air Filter 33-2209
 		Buy
33-2209.jpg
2001 AUDI A4 Quattro 1.8L L4 F/I - All Automotive Air Filter 33-2125
 		Buy
33-2125.jpg
2001 AUDI A4 Quattro 2.8L V6 F/I - All Automotive Air Filter 33-2125
 		Buy
33-2125.jpg
2000 AUDI A4 2.4L V6 F/I - All Automotive Air Filter 33-2125
 		Buy
33-2125.jpg
2000 AUDI A4 2.5L V6 DSL - 150BHP Automotive Air Filter 33-2125
 		Buy
33-2125.jpg
2000 AUDI A4 2.6L V6 F/I - All Automotive Air Filter 33-2125
 		Buy
33-2125.jpg
2000 AUDI A4 2.7L V6 F/I - All Automotive Air Filter 33-2125
 		Buy
33-2125.jpg
2000 AUDI A4 2.8L V6 F/I - All Automotive Air Filter 33-2125
 		Buy
33-2125.jpg
2000 AUDI A4 1.6L L4 F/I - All Automotive Air Filter 33-2125
 		Buy
33-2125.jpg
2000 AUDI A4 1.8L L4 F/I - All Automotive Air Filter 33-2125
 		Buy
33-2125.jpg
2000 AUDI A4 1.9L L4 DSL - All Automotive Air Filter 33-2125
 		Buy
33-2125.jpg
2000 AUDI A4 2.0L L4 F/I - All Automotive Air Filter 33-2209
 		Buy
33-2209.jpg
2000 AUDI A4 3.0L V6 F/I - All Automotive Air Filter 33-2209
 		Buy
33-2209.jpg
2000 AUDI A4 2.5L V6 DSL - 155/163/180BHP Automotive Air Filter 33-2209
 		Buy
33-2209.jpg
2000 AUDI A4 Quattro 1.8L L4 F/I - All Automotive Air Filter 33-2125
 		Buy
33-2125.jpg
2000 AUDI A4 Quattro 2.8L V6 F/I - All Automotive Air Filter 33-2125
 		Buy
33-2125.jpg
1999 AUDI A4 1.6L L4 F/I - All Automotive Air Filter 33-2125
 		Buy
33-2125.jpg
1999 AUDI A4 1.8L L4 F/I - All Automotive Air Filter 33-2125
 		Buy
33-2125.jpg
1999 AUDI A4 1.9L L4 DSL - All Automotive Air Filter 33-2125
 		Buy
33-2125.jpg
1999 AUDI A4 2.4L V6 F/I - All Automotive Air Filter 33-2125
 		Buy
33-2125.jpg
1999 AUDI A4 2.5L V6 DSL - All Automotive Air Filter 33-2125
 		Buy
33-2125.jpg
1999 AUDI A4 2.6L V6 F/I - All Automotive Air Filter 33-2125
 		Buy
33-2125.jpg
1999 AUDI A4 2.7L V6 F/I - All Automotive Air Filter 33-2125
 		Buy
33-2125.jpg
1999 AUDI A4 2.8L V6 F/I - All Automotive Air Filter 33-2125
 		Buy
33-2125.jpg
1999 AUDI A4 Quattro 1.8L L4 F/I - All Automotive Air Filter 33-2125
 		Buy
33-2125.jpg
1999 AUDI A4 Quattro 2.8L V6 F/I - All Automotive Air Filter 33-2125
 		Buy
33-2125.jpg
1998 AUDI A4 1.6L L4 F/I - All Automotive Air Filter 33-2125
 		Buy
33-2125.jpg
1998 AUDI A4 1.8L L4 F/I - All Automotive Air Filter 33-2125
 		Buy
33-2125.jpg
1998 AUDI A4 1.9L L4 DSL - All Automotive Air Filter 33-2125
 		Buy
33-2125.jpg
1998 AUDI A4 2.4L V6 F/I - All Automotive Air Filter 33-2125
 		Buy
33-2125.jpg
1998 AUDI A4 2.5L V6 DSL - All Automotive Air Filter 33-2125
 		Buy
33-2125.jpg
1998 AUDI A4 2.6L V6 F/I - All Automotive Air Filter 33-2125
 		Buy
33-2125.jpg
1998 AUDI A4 2.7L V6 F/I - All Automotive Air Filter 33-2125
 		Buy
33-2125.jpg
1998 AUDI A4 2.8L V6 F/I - All Automotive Air Filter 33-2125
 		Buy
33-2125.jpg
1998 AUDI A4 Quattro 1.8L L4 F/I - All Automotive Air Filter 33-2125
 		Buy
33-2125.jpg
1998 AUDI A4 Quattro 2.8L V6 F/I - All Automotive Air Filter 33-2125
 		Buy
33-2125.jpg
1997 AUDI A4 1.6L L4 F/I - All Automotive Air Filter 33-2125
 		Buy
33-2125.jpg
1997 AUDI A4 1.8L L4 F/I - All Automotive Air Filter 33-2125
 		Buy
33-2125.jpg
1997 AUDI A4 1.9L L4 DSL - All Automotive Air Filter 33-2125
 		Buy
33-2125.jpg
1997 AUDI A4 2.4L V6 F/I - All Automotive Air Filter 33-2125
 		Buy
33-2125.jpg
1997 AUDI A4 2.6L V6 F/I - All Automotive Air Filter 33-2125
 		Buy
33-2125.jpg
1997 AUDI A4 2.8L V6 F/I - All Automotive Air Filter 33-2125
 		Buy
33-2125.jpg
1997 AUDI A4 Quattro 1.8L L4 F/I - All Automotive Air Filter 33-2125
 		Buy
33-2125.jpg
1997 AUDI A4 Quattro 2.8L V6 F/I - All Automotive Air Filter 33-2125
 		Buy
33-2125.jpg
1996 AUDI A4 1.6L L4 F/I - All Automotive Air Filter 33-2125
 		Buy
33-2125.jpg
1996 AUDI A4 1.8L L4 F/I - All Automotive Air Filter 33-2125
 		Buy
33-2125.jpg
1996 AUDI A4 1.9L L4 DSL - All Automotive Air Filter 33-2125
 		Buy
33-2125.jpg
1996 AUDI A4 2.6L V6 F/I - All Automotive Air Filter 33-2125
 		Buy
33-2125.jpg
1996 AUDI A4 2.8L V6 F/I - All Automotive Air Filter 33-2125
 		Buy
33-2125.jpg
1996 AUDI A4 Quattro 2.8L V6 F/I - All Automotive Air Filter 33-2125
 		Buy
33-2125.jpg
1995 AUDI A4 1.6L L4 F/I - All Automotive Air Filter 33-2125
 		Buy
33-2125.jpg
1995 AUDI A4 1.8L L4 F/I - All Automotive Air Filter 33-2125
 		Buy
33-2125.jpg
1995 AUDI A4 1.9L L4 DSL - All Automotive Air Filter 33-2125
 		Buy
33-2125.jpg
1995 AUDI A4 2.6L V6 F/I - All Automotive Air Filter 33-2125
 		Buy
33-2125.jpg
1995 AUDI A4 2.8L V6 F/I - All Automotive Air Filter 33-2125
 		Buy
33-2125.jpg
1994 AUDI A4 1.8L L4 F/I - All Automotive Air Filter 33-2125
 		Buy
33-2125.jpg
1994 AUDI A4 1.9L L4 DSL - All Automotive Air Filter 33-2125
 		Buy
33-2125.jpg
1994 AUDI A4 2.6L V6 F/I - All Automotive Air Filter 33-2125
 		Buy
33-2125.jpg
1994 AUDI A4 2.8L V6 F/I - All Automotive Air Filter 33-2125
 		Buy
33-2125.jpg
K&N manufactures thousands of automotive performance air filters for most vehicles on the road.

Copyright © 2009 K&N Engineering, Inc. All Rights Reserved.