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.

This Part Fits:

Year	Make	Model	Submodel
2015-2019	Audi	A4	Premium
2015-2019	Audi	A4	Premium Plus
2015,2017-2019	Audi	A4	Prestige
2019	Audi	A4	Titanium
2017	Audi	A4 allroad	Premium
2017	Audi	A4 allroad	Premium Plus
2017	Audi	A4 allroad	Prestige
2015-2019	Audi	A4 Quattro	Premium
2015-2019	Audi	A4 Quattro	Premium Plus
2015,2017-2019	Audi	A4 Quattro	Prestige
2018-2020	Audi	A5 Quattro	Premium
2018-2020	Audi	A5 Quattro	Premium Plus
2018-2020	Audi	A5 Quattro	Prestige
2018-2020	Audi	A5 Sportback	Premium
2018-2020	Audi	A5 Sportback	Premium Plus
2018-2020	Audi	A5 Sportback	Prestige
2021	Audi	Q5	Premium
2021	Audi	Q5	Premium Plus
2021	Audi	Q5	Prestige
2018-2021	Audi	RS5	Base
2016,2018	Audi	S4	Premium Plus
2016,2018	Audi	S4	Prestige
2018	Audi	S5	Premium Plus
2018	Audi	S5	Prestige