Using only the best flame-laminated dual-layer foam bonded with the highest quality glue No-Toil handmakes each foam filter to stand up to the roughest and toughest of any style of riding or terrain. Note: No-Toil air filters oil washes clean in water and is 100% biodegradable; dirty water can be thrown down the sink. You do not need to use harmful petrol or kerosene to clean your filter. No Toil oil is 100% waterproof - until water is mixed with No Toil cleaning crystals). Fits: KTM 125 EXC ENDURO 2008-2011 125 SX 2007-2010 144 SX 2007-2008 150 SX 2009-2010 200 EXC 2008-2009 2011 250 EXC 2008-2011 250 EXCE 2009 250 EXCF 2008-2011 250 SX 2007-2010 250 SXF 2008-2010 250 XCW 2009-2011 300 EXCE 2008-2013 300 XC 2008-2010 400 EXC 2009-2013 450 EXC 2008-2011 450 SX ATV 2009-2010 450 SX RACING 2007 450 SXF 2007-2010 450 XC ATV 2009 450 XCW 2009-2011 505 SX ATV 2009-2010 505 SXF 2007-2008 505 XCF 2008-2009 525 XC ATV 2009-2010 530 EXC 2008-2011 530 XCW 2009-2011