Certain vehicles will require a small breather filter to go with their intakes. If you have a Secondary Air Injection (SAI) hose, this will be a required accessory. Check out the handy image to see where the SAI is, and if you have it.

This Part Fits:

Year	Make	Model	Submodel
2015-2018	Audi	A3	Premium
2015-2018	Audi	A3	Premium Plus
2015-2018	Audi	A3	Prestige
2015-2016	Audi	A3	TDI Premium
2015-2016	Audi	A3	TDI Premium Plus
2015-2016	Audi	A3	TDI Prestige
2015-2018	Audi	A3 Quattro	Premium
2015-2018	Audi	A3 Quattro	Premium Plus
2015-2018	Audi	A3 Quattro	Prestige
2020	Audi	S3	Premium
2015-2020	Audi	S3	Premium Plus
2015-2019	Audi	S3	Prestige
2016-2018	Audi	TT Quattro	Base
2016-2019	Audi	TTS Quattro	Base
2016	Volkswagen	Golf	Base
2015	Volkswagen	Golf	Launch Edition
2015-2018	Volkswagen	Golf	S
2015-2016,2018	Volkswagen	Golf	SE
2015-2016	Volkswagen	Golf	SEL
2017	Volkswagen	Golf	Wolfsburg Edition
2017-2019	Volkswagen	Golf Alltrack	S
2017-2019	Volkswagen	Golf Alltrack	SE
2017-2019	Volkswagen	Golf Alltrack	SEL
2015-2019	Volkswagen	Golf R	Base
2016	Volkswagen	Golf SportWagen	Limited Edition
2015-2017	Volkswagen	Golf SportWagen	S
2015-2017	Volkswagen	Golf SportWagen	SE
2015-2017	Volkswagen	Golf SportWagen	SEL
2015-2020	Volkswagen	GTI	Autobahn
2019	Volkswagen	GTI	Rabbit Edition
2015-2020	Volkswagen	GTI	S
2015-2020	Volkswagen	GTI	SE
2017	Volkswagen	GTI	Sport
2019	Volkswagen	Jetta	GLI 35th Anniversary Edition
2019-2020	Volkswagen	Jetta	GLI Autobahn
2019-2020	Volkswagen	Jetta	GLI S