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

Part # 045629
Item #357854
Fits 16 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 · 2018–2021
    • 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
$854.99 $769.49 Save $85.50
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WARNING: Cancer and Reproductive Harm — www.P65Warnings.ca.gov
FMF Factory 4.1 RCT Titanium Anodized Full System — GasGas EX 350F (2021-2023), GasGas EX 450F (2021-2023) + 13 more, 4-Stroke
Product Details

The Factory 4.1 RCT incorporates the latest in FMF Resonance Chamber Technology (RCT) — both internally and externally. A patent-pending shape enhances and refines the exhaust pressure wave for optimal power output while lowering the sound level. Constructed from aerospace-grade titanium with a carbon end cap, the system is shorter, lighter, and quieter than stock.

  • FMF Resonance Chamber Technology (RCT) for power + quieter operation
  • Aerospace-grade titanium construction with carbon end cap
  • Shorter overall length — less crash-damage exposure, mass centralized
  • Rapid Tuning System (RTS) for easy insert and spark-arrestor swaps
  • Quieter than stock with huge weight savings
  • Manufactured 100% in Southern California

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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