K&N’s high-flow air filters are available as a replacement for your stock motorcycle air filter element. They are custom engineered to fit your specific application and are designed to provide low restriction and increased performance, while providing excellent engine protection for your motorcycle. This part fits the following models: HARLEY DAVIDSON FLHRSE3 Screamin Eagle Road King 110 CI (2007 – 2007)HARLEY DAVIDSON FLHTCSE2 Screamin Eagle Electra Glide 2 103 CI (2005 – 2005)HARLEY DAVIDSON FLHTCUSE2 Screamin Eagle Ultra Classic Electra Gli 110 CI (2007 – 2007)HARLEY DAVIDSON FLSTFI Fat Boy F/I 15th Anniv.