KTM EXC-F 500 2020-23
HUSQVARNA FE 501 2020-23
Factory 4.1 RCT Exhaust System
- RCT (Resonance Chamber Technology) features a patented core Shape that Lowers Decibels while maintaining Maximum Power output
- Internal DUCTS in The Chambers of the rct system increase internal volume for improved exhaust Flow, resulting in power gains throughout the entire range of power
- FMF's Factory Forward Engineering centralizes mass and is less prone to crash Damage
- Innovative rear end cap features Simple installation of Tuning Tip inserts or Spark arrestor with the removal of four screws
- features FMF powerbomb header
- Meet AMA and FIM Sound requirements
- quietcore 94DB INSERT included
- Spark arrestor included in Muffler
- made in the U. S. A.
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