Upgrade the exhaust performance and sound control of your motorcycle with the FMF Q4 Hex Spark Arrestor Muffler, manufacturer part number 045627 and vendor part number 79-4203. Designed for select KTM and Husqvarna 350cc and 450cc motorcycles, this muffler uses internal baffles, chambers, and advanced sound-absorbing materials to help accelerate exhaust flow while minimizing noise and power loss.
The FMF Q4 Hex exhaust is engineered to produce a sound output well under 96 dB on most machines, helping meet strict riding-area sound requirements. Its U.S. Forestry-approved spark arrestor features a maintenance-free stainless steel screen for dependable off-road use and simplified upkeep. This Q4 Hex muffler is available only for the current models listed below, so verify motorcycle year, model, and engine size before ordering.
Fitment includes the 2019 Husqvarna FX 350, FX 450, FC 350, and FC 450; 2019 KTM 450 SX-F, 350 SX-F, 450 XC-F, and 350 XC-F; and the 2020 Husqvarna FC 350 and FC 450. The FMF 045627 is intended as a direct-fit exhaust component for these applications and combines controlled sound output, spark-arresting capability, and efficient exhaust flow in a durable replacement muffler.
Features:
- Internal baffles, chambers, and advanced sound-absorbing materials help accelerate exhaust flow with less noise and minimal power loss
- Sound output is well under 96 dB on most machines to help satisfy strict sound requirements
- U.S. Forestry-approved spark arrestor with a maintenance-free stainless steel screen
- Designed for current-model KTM and Husqvarna 350cc and 450cc motorcycles
- Brand: FMF
- Model: Q4 Hex Spark Arrestor Muffler
- Manufacturer Part Number: 045627
- Vendor Part Number: 79-4203
- Fitment: 2019 Husqvarna FX 350, FX 450, FC 350, and FC 450; 2019 KTM 450 SX-F, 350 SX-F, 450 XC-F, and 350 XC-F; 2020 Husqvarna FC 350 and FC 450
Fitment:
2018 KTM 250 SX-F
2018 KTM 250 XC-F
2018 KTM 350 SX-F
2018 KTM 350 XC-F
2018 KTM 450 SX-F
2018 KTM 450 XC-F
2019 Husqvarna FC 250
2019 Husqvarna FC 350
2019 Husqvarna FC 450
2019 Husqvarna FX 350
2019 Husqvarna FX 450
2019 KTM 250 SX-F
2019 KTM 250 XC-F
2019 KTM 350 SX-F
2019 KTM 350 XC-F
2019 KTM 450 SX-F
2019 KTM 450 XC-F
2020 Husqvarna FC 250
2020 Husqvarna FC 350
2020 Husqvarna FC 450
2020 Husqvarna FX 350
2020 Husqvarna FX 450
2020 KTM 250 SX-F
2020 KTM 250 XC-F
2020 KTM 350 SX-F
2020 KTM 350 XC-F
2020 KTM 450 SX-F
2020 KTM 450 XC-F
2021 Gas-Gas EX 300
2021 Gas-Gas EX 350F
2021 Gas-Gas EX 450F
2021 Gas-Gas Mc 250
2021 Gas-Gas MC 250F
2021 Gas-Gas MC 450F
2021 Husqvarna FC 250
2021 Husqvarna FC 350
2021 Husqvarna FC 450
2021 Husqvarna FX 350
2021 Husqvarna FX 450
2021 KTM 250 SX-F
2021 KTM 250 XC-F
2021 KTM 350 SX-F
2021 KTM 350 XC-F
2021 KTM 450 SX-F
2021 KTM 450 XC-F
2022 Gas-Gas EX 250
2022 Gas-Gas EX 300
2022 Gas-Gas EX 350F
2022 Gas-Gas EX 450F
2022 Gas-Gas Mc 250
2022 Gas-Gas MC 250F
2022 Gas-Gas MC 350F
2022 Gas-Gas MC 450F
2022 Husqvarna FC 250
2022 Husqvarna FC 350
2022 Husqvarna FC 450
2022 Husqvarna FX 350
2022 Husqvarna FX 450
2022 KTM 250 SX-F
2022 KTM 250 XC-F
2022 KTM 350 SX-F
2022 KTM 350 XC-F
2022 KTM 450 SX-F
2022 KTM 450 XC-F
2023 Gas-Gas EX 250
2023 Gas-Gas EX 300
2023 Gas-Gas EX 350F
2023 Gas-Gas EX 450F
2023 Gas-Gas Mc 250
2023 Gas-Gas MC 250F
2023 Gas-Gas MC 350F
2023 Gas-Gas MC 450F