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Audi S4 K&N Air Filter | S4 Performance Air Filters

Audi AccessoriesIf you want to add more performance to your Audi S4 a K&N performance air filter will do the job. K&N air filters use a washable and reusable filter element that out flows your factory Audi S4 air filter. K&N air filters are the industry standard in performance filters and Slickcar.com offers a complete line for your S4. With the Million Mile guarantee you will never need to buy another air filter for your Audi S4 . If you canít find the correct K&N performance filter for your Audi please call us toll free at 1-800-780-1409.
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• K&N Filters
Audi S4 Accessories
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Just a Few of the Audi S4 K&N Air Filters We Carry...

Audi S4 2000-2002 2.7l V6 F/I K&N Replacement Air Filter

Audi S4 2000-2002  2.7l V6 F/I  K&N Replacement Air Filter
33-2125
K&N Air Filter Fits 2000 2001 2002 Audi S4
 
 MSRP: $73.49
Just: $48.99 Each

Audi S4 1994-1994 2.3l L5 F/I Turbo, 20v K&N Replacement Air Filter

Audi S4 1994-1994  2.3l L5 F/I Turbo, 20v K&N Replacement Air Filter
33-2029
K&N Air Filter Fits 1994 Audi S4
 
 MSRP: $73.49
Just: $48.99 Each

Audi S4 1997-1999 2.7l V6 F/I K&N Replacement Air Filter

Audi S4 1997-1999  2.7l V6 F/I  K&N Replacement Air Filter
33-2125
K&N Air Filter Fits 1997 1998 1999 Audi S4
 
 MSRP: $73.49
Just: $48.99 Each

Audi S4 2009-2009 R 4.2l V8 F/I K&N Replacement Air Filter

Audi S4 2009-2009 R 4.2l V8 F/I  K&N Replacement Air Filter
33-2209
K&N Air Filter Fits 2009 Audi S4
 
 MSRP: $73.49
Just: $48.99 Each

Audi S4 2005-2008 4.2l V8 F/I K&N Replacement Air Filter

Audi S4 2005-2008  4.2l V8 F/I  K&N Replacement Air Filter
33-2209
K&N Air Filter Fits 2005 2006 2007 2008 Audi S4
 
 MSRP: $73.49
Just: $48.99 Each

Audi S4 1992-1994 2.2l L5 F/I K&N Replacement Air Filter

Audi S4 1992-1994  2.2l L5 F/I  K&N Replacement Air Filter
33-2029
K&N Air Filter Fits 1992 1993 1994 Audi S4
 
 MSRP: $73.49
Just: $48.99 Each

Audi S4 2007-2008 R 4.2l V8 F/I K&N Replacement Air Filter

Audi S4 2007-2008 R 4.2l V8 F/I  K&N Replacement Air Filter
33-2209
K&N Air Filter Fits 2007 2008 Audi S4
 
 MSRP: $73.49
Just: $48.99 Each

Audi S4 1993-1993 2.3l L5 F/I 20v, Turbo K&N Replacement Air Filter

Audi S4 1993-1993  2.3l L5 F/I 20v, Turbo K&N Replacement Air Filter
33-2029
K&N Air Filter Fits 1993 Audi S4
 
 MSRP: $73.49
Just: $48.99 Each

Audi S4 2000-2003 R 2.7l V6 F/I K&N Replacement Air Filter

Audi S4 2000-2003 R 2.7l V6 F/I  K&N Replacement Air Filter
33-2125
K&N Air Filter Fits 2000 2001 2002 2003 Audi S4
 
 MSRP: $73.49
Just: $48.99 Each

Audi S4 2009-2010 3.0l V6 F/I K&N Replacement Air Filter

Audi S4 2009-2010  3.0l V6 F/I  K&N Replacement Air Filter
E-1987
K&N Air Filter Fits 2009 2010 Audi S4
 
 MSRP: $85.49
Just: $56.99 Each

Audi S4 2005-2006 R 4.2l V8 F/I K&N Replacement Air Filter

Audi S4 2005-2006 R 4.2l V8 F/I  K&N Replacement Air Filter
33-2209
K&N Air Filter Fits 2005 2006 Audi S4
 
 MSRP: $73.49
Just: $48.99 Each

Audi S4 2009-2009 4.2l V8 F/I K&N Replacement Air Filter

Audi S4 2009-2009  4.2l V8 F/I  K&N Replacement Air Filter
33-2209
K&N Air Filter Fits 2009 Audi S4
 
 MSRP: $73.49
Just: $48.99 Each
Looking for More? Select your Year

Questions and Answers about K&N Air Filters

Q: Does the K&N air filter fit into my air cleaner housing just like a factory air filter?

A: Yes a K&N air filter is designed to the exact dimensions of a factory air filter.

Q: Do you really get a performance increase from a K&N air filter?

A: Yes. K&N has Dyno proven results that back up all increased horsepower claims they make. On average you will gain 2-5 horsepower just by changing your air filter to a K&N.

Q: I have also read that a K&N air filter will increase fuel mileage in my vehicle. Is this true?

A: Yes. With less air intake restriction your vehicle will not have to work as hard to get air into the engine. This is why you get better MPG from a K&N air filter.

Q: Does K&N really stand behind the million mile guarantee on filters?

A: Yes. K&N will replace your air filter anytime it fails within 1 million miles. Chances are you will never have the same car for 1 million miles but if you do K&N will stand behind it.

Q: Do I need to clean a K&N air filter?

A: Yes K&N offers a cleaning kit that should be used every 15000-30000 miles of use. This will keep your filter performing like new.

 
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