Note: For closed course competition use ONLY. Not intended for street use.Detailed Specifications: Type: System. Configuration: Single. Construction: Aluminum. Finish: N/A. Header construction: Stainless steel. Header type: ...

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Note: For closed course competition use ONLY. Not intended for street use.Detailed Specifications: Type: System. Configuration: Single. Construction: Aluminum. Finish: N/A. Header construction: Stainless steel. Header type: Hi-Flo. Weight: N/A.
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  • FMF developed the PowerCore4 to increase the horsepower and torque throughout the entire power curve producing a noticeable power increase that is useable and compatible with every style of riding.
  • Aluminum construction and stainless steel Hi-Flo endcaps make for the perfect balance of performance and strength.
  • Aluminum performance muffler with durable stainless steel components.
  • Completely redesigned for all late model applications.
  • Removable spark arrestor included on most models (see notes).
  • FMF developed the PowerCore4 to increase the horsepower and torque throughout the entire power curve producing a noticeable power increase that is useable and compatible with every style of riding.
  • Aluminum construction and stainless steel Hi-Flo endcaps make for the perfect balance of performance and strength.
  • Aluminum performance muffler with durable stainless steel components.
  • Completely redesigned for all late model applications.
  • Removable spark arrestor included on most models (see notes).

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