Equip your vehicle with the latest industry products! Buy Air filter K&N KNE-0664 and don't miss out on anything!. Type: Air filter. Recommended use: Car. Compatible Vehicle:. audi RS6 4.0L V8 F/I 2013,2014,2015,2016,2017,2018. audi RS7 4.0L V8 F/I 2013,2014,2015,2016,2017,2018. General Product Safety Regulations information:. K&N Filters Europe Ltd.. Unit 12, Jeffrey's Road, Bracknell, United Kingdom, RG42 2PW. RG42 2PW - Bracknell. +441344701060. infoeurope@knfilters.com. https://www.knfilters.com