This is a used FMF Factory 4.1 Exhaust silencer in Aluminum from a 2015 KTM 450 XC-F. This will fit 2004-2016 KTM 4 strokes. This does not have a spark arrestor. Video of bike running to hear how it sounds. Condition - Silencer is in pretty good shape but the carbon end cap does have some chipping, you can see this in the pics. When I shake it, the core does not rattle. The mounts are not broken. The rubber for the mount holes is usable, but not great. The silencer can has some tire rub and tiny dings, but overall it's totally usable. I can guarantee fit if you message me to confirm fit. If you don't message me, I can only tell you it should fit the bikes listed below if you have a stock unmodified head pipe. If you message me to verify fit and I'm wrong, I'll cover the cost to return it. KTM 250 SX-F 2009-2012 KTM 250 XC-F 2008-2012 KTM 250 XCF-W 2008-2016 KTM 350 SX-F 2011-2012 KTM 350 XC-F 2011-2016 KTM 350 XCF-W 2012-2016 KTM 400 XC-W 2009-2010 KTM 450 EXC 2004-2011 KTM 450 EXC-R 2008 KTM 450 SX 2003-2007 KTM 450 SX-F 2008-2012 KTM 450 XC-F 2008-2016 KTM 450 XCr-W 2008 KTM 450 XC-W 2009-2016 KTM 500 EXC 2012-2016 KTM 500 XC-W 2012-2016 KTM 505 XC-F 2008 KTM 525 SX 2003-2007 KTM 525 MXC 2004-2005 KTM 525 XC 2005-2007 KTM 525 XC-W 2005-2007 KTM 525 EXC 2004-2007 KTM 530 EXC 2009-2011 KTM 530 EXC-R 2008 KTM 530 XC W 2009 KTM 530 XCr W 2008