GPR Exhaust SatInox Full Line for Kawasaki KLX 250 SF 2009 to 2012 Muffler with:dB Killer No Need to Replace the K 207674 No Need to Replace the Air Box:This upgrade allows you to enhance your vehicle’s performance without the need to replace the entire air box HUSQVARNA TC 511 2011 2012 HUSQVARNA WR 360 2001 2002 HUSQVARNA WR 250 2001 2002 HUSQVARNA TE 511 2011 2012 HUSQVARNA TE 510 2005 2010 HUSQVARNA TE 450 2003 2010 HUSQVARNA TE 449 2011 2012 HUSQVARNA TE 310 2009 2012 HUSQVARNA TE 250 2003 2012 HUSQVARNA CR 250 2001 2002 HUSQVARNA TC 510 2005 2010 HUSQVARNA TC 450 2003 2010 HUSQVARNA TC 449 2011 2012 HUSQVARNA TC 310 2009 2012 HUSQVARNA TC 250 2003 2012 HUSQVARNA SM 510 R 2005 2010 HUSQVARNA SM 450 R 2003 2010 HUSQVARNA SM 250 R 2005 2009 Removing the DB Killer is ILLEGAL and the customer assumes the responsibility if they use the motorbike as on the circuits only please stop the installation process and immediately contact customer care via email at claim@GPR