FMF Gold Series Gnarly Pipe KTM 200cc ('98 '99) 020080 Aprilia Please choose “yes 1403 3664 Please choose “yes GasGas EC 125 2015GasGas EC 125 Six Days 2011 2015GasGas EC 200 Six Days 2011 2015GasGas EC 250 E 2011 2015GasGas EC 250 F 2010 2015GasGas EC 250 Six Days 2011 2015GasGas EC 250 YR 2012 2015GasGas EC 300 E 2011 2015GasGas EC 300 F 2015GasGas EC 300 Six Days 2011 2015GasGas EC 450 F 2015GasGas EC 450 Raid 2015Kawasaki KLX 450 R 2008 2012Kawasaki KX 250 F 2004 2021Kawasaki KX 450 F 2006 2021Kawasaki KXE 250 F 2003 2005Suzuki RM Z 250 2004 2021Suzuki RM Z 450 2005 2021Suzuki RMX 450 Z 2005 2014Yamaha WR 125 2003 2015Yamaha WR 250 F 2003 2021Yamaha WR 250 R 2008 2020Yamaha WR 450 F 2003 2021Yamaha YZ 125 2003 2021Yamaha YZ 250 2003 2021Yamaha YZ 250 F 2003 2021Yamaha YZ 250 FX 2015 2021Yamaha YZ 250 X 2016 2021Yamaha YZ 450 F 2003 2021Yamaha YZ 450 FX 2016 2021 O Rings Included The FMF Gnarly pipe focuses on increasing the lower RPM horsepower and torque to get you out of the toughest terrain