K&N Performance Air Intake Kit for Audi A4 2.8L V6 - 57-0515 - 20595
Audi A4 Air Intake
Performance Air Intake System
Audi K&N Performance Air Filter (A4 A5 Q5 allroad B8 2.0T) 8R0133843K by KN Engineering | Europa Parts
33-2209 - K&N Air Filter For Audi A4 Quattro 1.8/2.0/3.0/3.2 Petrol 2002 - 2009 | eBay
K&N Engine Air Filter: High Performance, Premium, Washable, Replacement Filter: 2015-2018 AUDI (A4, A4 Quattro, A5, A5 Quattro, A5 Sportback, Q5 II), E-0648 - Walmart.com
Audi K&N Performance Air Filter (A4 S4 RS4 B6 B7) 06C133843 by KN Engineering | Europa Parts
K&N Air Filter Install - Audi A4 1.8T Prior Experience: None Cost: approx. $50 Time: aprrox. 20 minutes Discuss this mod - Here After getting my APR stage 1, it was recommended that I install a K&N drop in filter. Although air filters should be changed ...