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Home / KTM 300 XC Parts / KTM FMF Factory Fatty Expansion Chamber 250/300 SX/XC/XC-W/EXC 2017-2020
KTM FMF Factory Fatty Expansion Chamber 250/300 SX/XC/XC-W/EXC 2017-2020

55405907001

KTM FMF Factory Fatty Expansion Chamber 250/300 SX/XC/XC-W/EXC 2017-2020

$299.99

This OEM part is in stock and ships in 1-2 business days.
1 item left


  • Made of high quality, extra strong and durable steel
  • Untreated surface for an unadulterated factory look
  • Broader, smoother powerband
  • Higher speed
  • More traction, better throttle control
  • Complete with o-rings
  • Combination with FMF silencer recommended
Approvals
  • Closed Course Competition Use Only

    FITMENT

    • KTM 250 SX 2017-2018
    • KTM 250 XC 2017-2018
    • KTM 250 XC-W 2017-2018
    • KTM 250 XC-W TPI 2018-2019
    • KTM 300 EXC TPI 2018
    • KTM 300 XC 2017-2018
    • KTM 300 XC-W 2017-2018
    • KTM 300 XC-W Six Days 2017-2018
    • KTM 300 XC-W Six Days TPI 2020
    • KTM 300 XC-W TPI 2019

    PROPOSITION 65

    ⚠️WARNING

    This product can expose you to chemicals known to the State of California known to cause Cancer or birth defects and reproductive harm. For more information go to: https://oehha.ca.gov/proposition-65

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    • Made of high quality, extra strong and durable steel
    • Untreated surface for an unadulterated factory look
    • Broader, smoother powerband
    • Higher speed
    • More traction, better throttle control
    • Complete with o-rings
    • Combination with FMF silencer recommended
    Approvals
    • Closed Course Competition Use Only
      • KTM 250 SX 2017-2018
      • KTM 250 XC 2017-2018
      • KTM 250 XC-W 2017-2018
      • KTM 250 XC-W TPI 2018-2019
      • KTM 300 EXC TPI 2018
      • KTM 300 XC 2017-2018
      • KTM 300 XC-W 2017-2018
      • KTM 300 XC-W Six Days 2017-2018
      • KTM 300 XC-W Six Days TPI 2020
      • KTM 300 XC-W TPI 2019

      ⚠️WARNING

      This product can expose you to chemicals known to the State of California known to cause Cancer or birth defects and reproductive harm. For more information go to: https://oehha.ca.gov/proposition-65

      The fitting instructions for KTM PowerParts can be accessed online. Go to www.ktm.com/manuals and enter the part # under the "POWERWEAR & POWERPARTS MANUALS" section to access the owner's manual (fitting instructions) for this part.