![Amazon.com: K&N Engine Air Filter: Increase Power & Acceleration, Washable, Premium, Replacement Car Air Filter: Compatible with 2007-2017 Audi V6/V8 (Q5, S5, SQ5, A5, A5 Quattro, S4, A4 Quattro) E-1987 : Automotive Amazon.com: K&N Engine Air Filter: Increase Power & Acceleration, Washable, Premium, Replacement Car Air Filter: Compatible with 2007-2017 Audi V6/V8 (Q5, S5, SQ5, A5, A5 Quattro, S4, A4 Quattro) E-1987 : Automotive](https://m.media-amazon.com/images/I/71HVUAtzTyL._AC_UF894,1000_QL80_.jpg)
Amazon.com: K&N Engine Air Filter: Increase Power & Acceleration, Washable, Premium, Replacement Car Air Filter: Compatible with 2007-2017 Audi V6/V8 (Q5, S5, SQ5, A5, A5 Quattro, S4, A4 Quattro) E-1987 : Automotive
![Amazon.com: BOSCH 6025C HEPA Cabin Air Filter - Compatible With Select Audi A4, A4 Quattro, RS4, S4 : Automotive Amazon.com: BOSCH 6025C HEPA Cabin Air Filter - Compatible With Select Audi A4, A4 Quattro, RS4, S4 : Automotive](https://m.media-amazon.com/images/I/51CPGf+xSjL._AC_.jpg)
Amazon.com: BOSCH 6025C HEPA Cabin Air Filter - Compatible With Select Audi A4, A4 Quattro, RS4, S4 : Automotive
![No Reserve: 2008 Audi A4 Avant 2.0T Quattro 6-Speed for sale on BaT Auctions - sold for $12,500 on June 3, 2023 (Lot #109,404) | Bring a Trailer No Reserve: 2008 Audi A4 Avant 2.0T Quattro 6-Speed for sale on BaT Auctions - sold for $12,500 on June 3, 2023 (Lot #109,404) | Bring a Trailer](https://bringatrailer.com/wp-content/uploads/2023/04/2008_audi_a4_13-13-41522.jpg?fit=940%2C626)
No Reserve: 2008 Audi A4 Avant 2.0T Quattro 6-Speed for sale on BaT Auctions - sold for $12,500 on June 3, 2023 (Lot #109,404) | Bring a Trailer
![Air Filter Cabin Filter 2 Pcs For Audi A4 B5 1994-2001/A4 B6 2000-2004/A4 B7 Avant 2004-2008/Convertible 2002-2009 Model Filter - AliExpress Air Filter Cabin Filter 2 Pcs For Audi A4 B5 1994-2001/A4 B6 2000-2004/A4 B7 Avant 2004-2008/Convertible 2002-2009 Model Filter - AliExpress](https://ae01.alicdn.com/kf/Hbd69087020ba4748a771e2b3188f6020S.jpg_640x640Q90.jpg_.webp)