• Description

  FMF Racing was started in 1973 by owner and founder Don Emler in a garage in Hawthorne, CA. Flash forward almost 40 years later where Uncle Donnie is still as hands-on as ever building the latest in performance in their state-of-the-art factory.

  • Replacement spark arrestor for FMF Factory 4.1 and 4C exhaust.
  • Note: If purchasing a Spark Arrestor Insert for CRF250R FMF Factory 4.1 Dual Exhaust, you must purchase the FMF Titanium Powercore S/A Insert. The Factory 4.1 Spark Arrestor will not work with the Factory 4.1 Dual Exhaust.
  • Note: NOT compatible with FMF Mini Factory 4.1 Exhaust.

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• 6 Reviews for the FMF Factory 4.1 Spark Arrestor Insert

• 30 Questions about the FMF Factory 4.1 Spark Arrestor Insert

• Fitment

• # Part Numbers for the FMF Factory 4.1 Spark Arrestor Insert

  Product Variant	Manufacturer Part #
  FMF Factory 4.1 Spark Arrestor Insert	040261

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