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FMF Q4 — S/A Slip-On — GasGas EX 250F (2021-2023), GasGas EX 350F (2021-2023) +

Part # 045627
Item #357852
Fits 22 motorcycles
  • GasGas
    • EX 250F · 2021–2023
    • EX 350F · 2021–2023
    • EX 450F · 2021–2023
    • MC 250F · 2021–2023
    • MC 350F · 2021–2023
    • MC 450F · 2021–2023
  • Husqvarna
    • FC 250 · 2019–2022
    • FC 350 · 2019–2022
    • FC 450 · 2019–2022
    • FC 450 ROCKSTAR EDITION · 2018
    • FC 450 ROCKSTAR EDITION · 2020–2021
    • FX 350 · 2019–2022
    • FX 450 · 2019–2022
  • KTM
    • 250 SX-F · 2019–2022
    • 250 XC-F · 2019–2022
    • 350 SX-F · 2019–2022
    • 350 XC-F · 2019–2022
    • 350 XC-F KAILUB RUSSELL · 2021
    • 450 SX-F · 2019–2022
    • 450 SX-F FACTORY EDITION · 2018
    • 450 SX-F FACTORY EDITION · 2020–2021
    • 450 XC-F · 2019–2022
$569.99 $512.99 Save $57.00
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WARNING: Cancer and Reproductive Harm — www.P65Warnings.ca.gov
FMF Q4 HEX S/A Slip-On — GasGas EX 250F (2021-2023), GasGas EX 350F (2021-2023) + 18 more, 4-Stroke
Product Details

The Q4 HEX is FMF's quietest 4-stroke slip-on — a hexagonal canister with sound-attenuating internal architecture and integrated spark arrestor. Built for noise-restricted tracks and U.S. Forest Service trails where you need quiet, low-decibel operation without losing performance feel.

  • Quietest FMF 4-stroke slip-on
  • U.S. Forest Service approved spark arrestor
  • Hexagonal aluminum canister
  • Stainless steel endcaps
  • Ideal for noise-restricted tracks and off-road

Fitment: 4-stroke bike specific — fits the following models:

  • GasGas EX 250F (2021-2023)
  • GasGas EX 350F (2021-2023)
  • GasGas EX 450F (2021-2023)
  • GasGas MC 250F (2021-2023)
  • GasGas MC 350F (2021-2023)
  • GasGas MC 450F (2021-2023)
  • Husqvarna FC 250 (2019-2022)
  • Husqvarna FC 350 (2019-2022)
  • Husqvarna FC 450 (2019-2022)
  • Husqvarna FC 450 ROCKSTAR EDITION (2018-2021)
  • Husqvarna FX 350 (2019-2022)
  • Husqvarna FX 450 (2019-2022)
  • KTM 250 SX-F (2019-2022)
  • KTM 250 XC-F (2019-2022)
  • KTM 350 SX-F (2019-2022)
  • KTM 350 XC-F (2019-2022)
  • KTM 350 XC-F KAILUB RUSSELL (2021)
  • KTM 450 SX-F (2019-2022)
  • KTM 450 SX-F FACTORY EDITION (2018-2021)
  • KTM 450 XC-F (2019-2022)

This is a 4-stroke exhaust. It is engineered for the 4-stroke engine architecture above and physically will not fit a 2-stroke bike. Verify your engine type before purchase.

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