FMF Q4 Hex Spark Arrestor For Yamaha 450 WR/YZ (14-18) | 044413 Dark Blue Undergoing a 15 step advanced

Undergoing a 15 step advanced manufacturing process

This is very important for the smaller bore CR 250R and 250X as horsepower always needs to be at a premium

Sherco All Models 2013-2026/ Beta 2013+ RR and 2014+ RS/RR-S / Stark Varg 2024-2026

CRF 450R / RX 2018-2020

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FMF Q4 Hex Spark Arrestor For Yamaha 450 WR/YZ (14-18) | 044413 Dark Blue Undergoing a 15 step advancedIncorporates 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 Less sound equals more ground Meets USFS and FIM World Enduro sound regulations Power gains throughout the entire rpm