K&N 15-18 Audi A4 L4-1.4L F/I Drop In Replacement Air Filter

K&N's replacement air filters are designed to increase horsepower and acceleration while providing excellent filtration. We make over 1,200 different replacement air filters for the majority of vehicles on the road. These filters are washable and reusable and are custom designed to fit into your existing factory air box. Their drop-in design means adding performance is simple. With most vehicles you simply remove the disposable air filter and replace it with a K&N. See applicable instruction sheet for details. Our stock replacement air filters for street vehicles are covered by our famous K&N Million-Mile Limited Warranty and will be the last air filter your vehicle will ever need. K&N's replacement air filters are designed to increase horsepower and acceleration while providing excellent filtration. Our stock replacement air filters for street vehicles are covered by K&N's Million-Mile Limited Warranty. Fitment: 2015 Audi A4 Premium 2015 Audi A4 Premium Plus 2015 Audi A4 Prestige 2015 Audi A4 Quattro Premium 2015 Audi A4 Quattro Premium Plus 2015 Audi A4 Quattro Prestige 2016 Audi A4 Premium 2016 Audi A4 Premium Plus 2016 Audi A4 Quattro Premium 2016 Audi A4 Quattro Premium Plus 2016 Audi S4 Premium Plus 2016 Audi S4 Prestige 2017 Audi A4 Premium 2017 Audi A4 Premium Plus 2017 Audi A4 Prestige 2017 Audi A4 allroad Premium 2017 Audi A4 allroad Premium Plus 2017 Audi A4 allroad Prestige 2017 Audi A4 Quattro Premium 2017 Audi A4 Quattro Premium Plus 2017 Audi A4 Quattro Prestige 2018 Audi A4 Premium 2018 Audi A4 Premium Plus 2018 Audi A4 Prestige 2018 Audi A4 Quattro Premium 2018 Audi A4 Quattro Premium Plus 2018 Audi A4 Quattro Prestige 2018 Audi A5 Quattro Premium 2018 Audi A5 Quattro Premium Plus 2018 Audi A5 Quattro Prestige 2018 Audi A5 Sportback Premium 2018 Audi A5 Sportback Premium Plus 2018 Audi A5 Sportback Prestige 2018 Audi RS5 Base 2018 Audi S4 Premium Plus 2018 Audi S4 Prestige 2018 Audi S5 Premium Plus 2018 Audi S5 Prestige 2019 Audi A4 Premium 2019 Audi A4 Premium Plus 2019 Audi A4 Prestige 2019 Audi A4 Titanium 2019 Audi A4 Quattro Premium 2019 Audi A4 Quattro Premium Plus 2019 Audi A4 Quattro Prestige 2019 Audi A5 Quattro Premium 2019 Audi A5 Quattro Premium Plus 2019 Audi A5 Quattro Prestige 2019 Audi A5 Sportback Premium 2019 Audi A5 Sportback Premium Plus 2019 Audi A5 Sportback Prestige 2019 Audi RS5 Base 2020 Audi A5 Quattro Premium 2020 Audi A5 Quattro Premium Plus 2020 Audi A5 Quattro Prestige 2020 Audi A5 Sportback Premium 2020 Audi A5 Sportback Premium Plus 2020 Audi A5 Sportback Prestige 2021 Audi Q5 Premium 2021 Audi Q5 Premium Plus 2021 Audi Q5 Prestige 2021 Audi RS5 Base