FMF Q4 Hex Spark Arrestor For Yamaha WR450F (12-15) | 044398 wash Feature packed with the most

Feature packed with the most advanced patented technology

'04-'08 Honda CRF250X/450X

144 SX (2007-2008)

Micro-adjust air bleed button

Get accurate measurements with this hardened

FMF Q4 Hex Spark Arrestor For Yamaha WR450F (12-15) | 044398 wash Feature packed with the mostFitment: Make Model Year YAMAHA WR450F 12 15 FMF is the leader in high performance quiet technology and our Q4 HEX is the next evolution in off road exhaust. The Q4 employs intricate chambers, baffles and proprietary multistage packing material making it the best performing quiet muffler available. With the Q4 you dont need to hear the power, just feel the power! Less sound equals more ground Meets USFS and FIM World Enduro sound regulations Power