Manufactured with the worlds highest quality materials Over 95 years of experience Test results prove 28% longer service life than Factory and leading competitor brands Lower cost with higher quality when compared to Factory filter This item fits the following vehicle applications: 2003-2005 fits KTM™ 250 EXC 4-Stroke 2000-2006 fits KTM™ 400 EXC 2001-2002 fits KTM™ 400 MXC 1999-2002 fits KTM™ 400 SX 1997-2000 fits KTM™ 400 SXC 2003-2005 fits KTM™ 450 EXC 2003-2005 fits KTM™ 450 MXC 2005-2006 fits KTM™ 450 SMR 2003-2006 fits KTM™ 450 SX-F 2008-2010 fits KTM™ 450 XC 2006 fits KTM™ 450 XC-F 2006 fits KTM™ 450 XC-W 2000-2002 fits KTM™ 520 EXC 2000-2002 fits KTM™ 520 MXC 2000-2002 fits KTM™ 520 SX 2003-2006 fits KTM™ 525 EXC 2003-2005 fits KTM™ 525 MXC 2003-2006 fits KTM™ 525 SX 2008-2010 fits KTM™ 525 XC 2000-2006 fits KTM™ 540 SXC 2004-2005 fits KTM™ 625 SMC 2003-2004 fits KTM™ 625 SXC 2008-2011 fits KTM™ 690 Duke 2008 fits KTM™ 690 Enduro 2009-2010 fits KTM™ 690 Enduro R 2008-2010 fits KTM™ 690 SMC 2008 fits KTM™ 690 Supermoto 2008-2009 fits POL Outlaw 450 MXR 2007-2011 fits POL Outlaw 525 IRS 2008-2010 fits POL Outlaw 525 S