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Audi S4 Replacement Air Filters

Buy now from K&N's Online Store and get a 100% money back guarantee on any Audi S4 air filter!

  • Designed to Increase Horsepower and Acceleration
  • High Air Flow with Excellent Filtration
  • Top Performance Accessory for Audi S4 Models
  • K&N Million Mile Limited Warranty®

Order your K&N replacement air filter Factory Direct today! Help your Audi S4 run better. Fast and FREE SHIPPING with any Audi S4 air filter

  1. 2025 Audi S4 3.0L V6 Gas air filter
    DKK 926.29
    E-0646
    K&N
  2. 2024 Audi S4 3.0L V6 Gas air filter
    DKK 926.29
    E-0646
    K&N
  3. 2023 Audi S4 3.0L V6 Gas air filter
    DKK 926.29
    E-0646
    K&N
  4. 2022 Audi S4 3.0L V6 Gas air filter
    DKK 926.29
    E-0646
    K&N
  5. 2021 Audi S4 3.0L V6 Diesel air filter
    DKK 926.29
    E-0646
    K&N
  6. 2020 Audi S4 3.0L V6 Gas air filter
    DKK 926.29
    E-0646
    K&N
  7. 2019 Audi S4 3.0L V6 Gas air filter
    DKK 926.29
    E-0646
    K&N
  8. 2018 Audi S4 3.0L V6 Gas air filter
    DKK 926.29
    E-0646
    K&N
  9. 2017 Audi S4 3.0L V6 Gas air filter
    DKK 926.29
    E-0646
    K&N
  10. 2016 Audi S4 3.0L V6 Gas air filter
    DKK 926.29
    E-1987
    K&N
  11. 2016 Audi S4 3.0L V6 Gas air filter
    DKK 926.29
    E-0646
    K&N
  12. 2015 Audi S4 3.0L V6 Gas air filter
    DKK 926.29
    E-1987
    K&N
  13. 2014 Audi S4 3.0L V6 Gas air filter
    DKK 926.29
    E-1987
    K&N
  14. 2013 Audi S4 3.0L V6 Gas air filter
    DKK 926.29
    E-1987
    K&N
  15. 2012 Audi S4 3.0L V6 Gas air filter
    DKK 926.29
    E-1987
    K&N
  16. 2011 Audi S4 3.2L V6 Gas air filter
    DKK 926.29
    E-1987
    K&N
  17. 2011 Audi S4 3.0L V6 Gas air filter
    DKK 926.29
    E-1987
    K&N
  18. 2010 Audi S4 3.2L V6 Gas air filter
    DKK 926.29
    E-1987
    K&N
  19. 2010 Audi S4 3.0L V6 Gas air filter
    DKK 926.29
    E-1987
    K&N
  20. 2009 Audi S4 3.2L V6 Gas air filter
    DKK 926.29
    E-1987
    K&N
  21. 2009 Audi S4 4.2L V8 Gas air filter
    DKK 725.59
    33-2209
    K&N
  22. 2009 Audi S4 4.2L V8 Gas air filter
    DKK 196.09
    KNA-2209
    K&N LONG LIFE 18,000 MILE ENGINE AIR FILTER - AUDI A4/RS4/S4/ SEAT EXEO
  23. 2008 Audi S4 4.2L V8 Gas air filter
    DKK 725.59
    33-2209
    K&N
  24. 2008 Audi S4 4.2L V8 Gas air filter
    DKK 196.09
    KNA-2209
    K&N LONG LIFE 18,000 MILE ENGINE AIR FILTER - AUDI A4/RS4/S4/ SEAT EXEO
  25. 2008 Audi S4 3.2L V6 Gas air filter
    DKK 926.29
    E-1987
    K&N
  26. 2007 Audi S4 4.2L V8 Gas air filter
    DKK 725.59
    33-2209
    K&N
  27. 2007 Audi S4 4.2L V8 Gas air filter
    DKK 196.09
    KNA-2209
    K&N LONG LIFE 18,000 MILE ENGINE AIR FILTER - AUDI A4/RS4/S4/ SEAT EXEO
  28. 2006 Audi S4 4.2L V8 Gas air filter
    DKK 196.09
    KNA-2209
    K&N LONG LIFE 18,000 MILE ENGINE AIR FILTER - AUDI A4/RS4/S4/ SEAT EXEO
  29. 2006 Audi S4 4.2L V8 Gas air filter
    DKK 725.59
    33-2209
    K&N
  30. 2005 Audi S4 4.2L V8 Gas air filter
    DKK 725.59
    33-2209
    K&N
  31. 2005 Audi S4 4.2L V8 Gas air filter
    DKK 196.09
    KNA-2209
    K&N LONG LIFE 18,000 MILE ENGINE AIR FILTER - AUDI A4/RS4/S4/ SEAT EXEO
  32. 2004 Audi S4 4.2L V8 Gas air filter
    DKK 196.09
    KNA-2209
    K&N LONG LIFE 18,000 MILE ENGINE AIR FILTER - AUDI A4/RS4/S4/ SEAT EXEO
  33. 2004 Audi S4 4.2L V8 Gas air filter
    DKK 725.59
    33-2209
    K&N
  34. 2003 Audi S4 4.2L V8 Gas air filter
    DKK 196.09
    KNA-2209
    K&N LONG LIFE 18,000 MILE ENGINE AIR FILTER - AUDI A4/RS4/S4/ SEAT EXEO
  35. 2003 Audi S4 4.2L V8 Gas air filter
    DKK 725.59
    33-2209
    K&N
  36. 2002 Audi S4 2.7L V6 Gas air filter
    DKK 196.09
    KNA-2125
    K&N LONG LIFE 18,000 MILE ENGINE AIR FILTER - AUDI / SKODA / VW
  37. 2002 Audi S4 2.7L V6 Gas air filter
    DKK 725.59
    33-2125
    K&N
  38. 2001 Audi S4 2.7L V6 Gas air filter
    DKK 196.09
    KNA-2125
    K&N LONG LIFE 18,000 MILE ENGINE AIR FILTER - AUDI / SKODA / VW
  39. 2001 Audi S4 2.7L V6 Gas air filter
    DKK 725.59
    33-2125
    K&N
  40. 2000 Audi S4 2.7L V6 Gas air filter
    DKK 725.59
    33-2125
    K&N
  41. 2000 Audi S4 2.7L V6 Gas air filter
    DKK 196.09
    KNA-2125
    K&N LONG LIFE 18,000 MILE ENGINE AIR FILTER - AUDI / SKODA / VW
  42. 1999 Audi S4 2.7L V6 Gas air filter
    DKK 196.09
    KNA-2125
    K&N LONG LIFE 18,000 MILE ENGINE AIR FILTER - AUDI / SKODA / VW
  43. 1999 Audi S4 2.7L V6 Gas air filter
    DKK 725.59
    33-2125
    K&N
  44. 1998 Audi S4 2.7L V6 Gas air filter
    DKK 196.09
    KNA-2125
    K&N LONG LIFE 18,000 MILE ENGINE AIR FILTER - AUDI / SKODA / VW
  45. 1998 Audi S4 2.7L V6 Gas air filter
    DKK 725.59
    33-2125
    K&N
  46. 1997 Audi S4 2.7L V6 Gas air filter
    DKK 725.59
    33-2125
    K&N
  47. 1997 Audi S4 2.7L V6 Gas air filter
    DKK 196.09
    KNA-2125
    K&N LONG LIFE 18,000 MILE ENGINE AIR FILTER - AUDI / SKODA / VW
  48. 1994 Audi S4 2.2L L5 Gas air filter
    DKK 725.59
    33-2029
    K&N
  49. 1993 Audi S4 2.2L L5 Gas air filter
    DKK 725.59
    33-2029
    K&N
  50. 1992 Audi S4 2.2L L5 Gas air filter
    DKK 725.59
    33-2029
    K&N
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