Q4 S/A '03 05 Yz450f 03 06 Wr450f

Features:

• Incorporates internal baffles, chambers and space age sound-absorbing materials to accelerate exhaust flow with less noise and minimal power loss


• Well under the 96db sound output on most machines to satisfy strict sound requirements


• U.S. Forestry approved Spark arrestor with maintenance free, stainless steel spark arrestor screen

Fitment:
2003 Yamaha WR450F
2003 Yamaha YZ450F
2004 Yamaha WR450F
2004 Yamaha YZ450F
2005 Yamaha WR450F
2005 Yamaha YZ450F
2006 Yamaha WR450F