2018 Audi A4 Air Filters

Air Filters that fit your 2018 Audi A4. Shop K&N Engineering. Every part is checked against your vehicle before it ships.

• K&N EngineeringK&N 15-18 Audi A4 L4-1.4L 18-20 A5/RS5 2021 Q5 F/I Drop In Replacement Air FilterMPN knnE-0646$83.99In stock
• K&N EngineeringK&N 17-26 Audi A4 / S4 Quattro - 18-26 Audi Q5 / SQ5 Cabin Air FilterMPN knnVF3027$52.99In stock
• K&N EngineeringK&N 15-18 Audi A4 L4-2.0 F/I Replacement Drop In Air FilterMPN knnE-0647$104.99In stock