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FMF Q4 — S/A Slip-On — GasGas EC 250F (2021), GasGas EC350F (2021) + 8 more, 4

Part # 045646
Item #357866
Fits 12 motorcycles
  • GasGas
    • EC 250F · 2021
    • EC350F · 2021
  • Husqvarna
    • FE 250 · 2020–2021
    • FE 350 · 2020–2023
    • FE 350 ROCKSTAR EDITION · 2021
    • FE 450 · 2020–2021
    • FE 450 · 2023
    • FE501 · 2020–2023
  • KTM
    • 350 XCF-W · 2020–2022
    • 450 XCF-W · 2020–2021
    • 450 XCF-W · 2023
    • 500 XCF-W · 2020–2023
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WARNING: Cancer and Reproductive Harm — www.P65Warnings.ca.gov
FMF Q4 HEX S/A Slip-On — GasGas EC 250F (2021), GasGas EC350F (2021) + 8 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 EC 250F (2021)
  • GasGas EC350F (2021)
  • Husqvarna FE 250 (2020-2021)
  • Husqvarna FE 350 (2020-2023)
  • Husqvarna FE 350 ROCKSTAR EDITION (2021)
  • Husqvarna FE 450 (2020-2023)
  • Husqvarna FE501 (2020-2023)
  • KTM 350 XCF-W (2020-2022)
  • KTM 450 XCF-W (2020-2023)
  • KTM 500 XCF-W (2020-2023)

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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