NO TOIL manufactures the world's best 2-stage foam air filters. Using only the best flame-laminated dual-layer foam bonded with the highest quality glue they hand make each foam filter to stand up to the roughest and toughest riding or terrain. NO TOIL filters can be used with NO TOIL biodegradable clean in water cleaner providing the best air filtration system in the world. Fits: KTM 105 SX 2006-2011 105 XC 2008-2009 125 EGS 1993-1997 125 EXC ENDURO 2004-2007 125 SX 2004-2005 200 EXC 2004-2007 200 SX 2004 250 EGS 1990-1997 250 EXC 1993 2004-2005 250 EXC RACING 2004-2006 250 EXCF 2007 250 SX 2004-2006 250 SXF 2005-2006 300 EXC 2004 2006 300 XC 2006-2007 300 XCW 2006-2009 400 EXC 2001-2007 450 EXC 2003-2006 450 SMR 2005-2007 450 SX 2003-2006 450 SX RACING 2006 450 XCW 2007 520 EXC 2001-2003 520 SX 2001-2002 525 EXC 2003-2006 525 SX 2003-2006 560 SMR 2005-2007 625 SXC 2006-2007 85 SX (Big Wheel) 2005-2012 85 SX (Small Wheel) 2005-2012