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FMF Factory 4.1 — RCT Stainless Full System — GasGas EX 350F (2021-2023), GasGas EX 450F

Part # 045628
Item #357853
Fits 17 motorcycles
  • GasGas
    • EX 350F · 2021–2023
    • EX 450F · 2021–2023
    • MC 350F · 2021–2023
    • MC 450F · 2021–2023
  • Husqvarna
    • 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
    • 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
$674.99 $607.49 Save $67.50
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WARNING: Cancer and Reproductive Harm — www.P65Warnings.ca.gov
FMF Factory 4.1 RCT Stainless Full System — GasGas EX 350F (2021-2023), GasGas EX 450F (2021-2023) + 13 more, 4-Stroke
Product Details

The Factory 4.1 RCT in stainless steel construction. Same Resonance Chamber Technology and power gains as the titanium system, with a stainless mid-pipe and muffler body for budget-friendly toughness. Shorter length, lighter than stock, and quieter than OEM with FMF's Rapid Tuning System.

  • FMF Resonance Chamber Technology (RCT)
  • 304 stainless steel construction — rugged and corrosion-resistant
  • Shorter overall length for mass centralization
  • Rapid Tuning System (RTS) — sound insert and spark arrestor swaps
  • Quieter than stock with weight savings

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

  • GasGas EX 350F (2021-2023)
  • GasGas EX 450F (2021-2023)
  • GasGas MC 350F (2021-2023)
  • GasGas MC 450F (2021-2023)
  • 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 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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