The company that set the clean air standard for your engine extends their expertise to oil filters. Now there’s only one name you need to remember for maximum protection, perfomance and value in all of your filters and related products: Twin Air. - Husqvarna FC 450 (2014-2015) - Husqvarna FS 450 (2014-2015) - Husqvarna FE 450 (2013-2018) - KTM 500/525/530 EXC-F (2012-2016) - KTM 450 SX-F (2013-2015) - KTM 450 XC-F (2013-2015)