The No Toil Super-Flo Air Filter Kit will allow your machine to have more air for more horsepower. The Super-Flo Air Filter will replace stock filter and air restricting cage with a high-flow air filter and cage. The No Toil Super-Flow Air Filter Kit will fit securely and tight for a strong seal and will not be burdened with a back-fire screen. The Super-Flo Air Filter has a flame retardant inner lining that will protect the bike and the rider from hot spark generated by the backfire from the machine. The Super-Flo Air Filter is easy to install with the No Toil speed knob. So now you are able to install a complete system that will safely replace your OEM filter and cage. Kit Includes: Super Flo air filter OEM fit high-flow air filter cage Speed knob that replaces Fitment: 2007 KTM 250 SX-F 2007 KTM 450 SX-F 2008 KTM 125 Exc 2008 KTM 125 SX 2008 KTM 250 SX-F 2008 KTM 250 XC-F 2008 KTM 250 XCF-W 2008 KTM 450 SX-F 2008 KTM 450 XC-F 2008 KTM 505 Sx-F 2008 KTM 505 Xc-F 2009 KTM 125 Exc 2009 KTM 125 SX 2009 KTM 250 SX-F 2009 KTM 250 XC-F 2009 KTM 250 XCF-W 2009 KTM 450 SX-F 2009 KTM 450 XC-F 2009 KTM 505 Sx-F 2009 KTM 505 Xc-F 2010 KTM 125 SX 2010 KTM 250 SX-F 2010 KTM 250 XC-F 2010 KTM 250 XCF-W 2010 KTM 350 SX-F 2010 KTM 350 XC-F 2010 KTM 450 SX-F 2010 KTM 450 XC-F