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About HMF Engineering Blackout Performance Series Big Core 3/4 System

HMF Engineering Blackout Performance Series Big Core 3/4 System

  • Cerakoted end cap, inlet and head pipe
  • Withstands temperatures up to 1200 degrees
  • Reduces heat throughout the system for better performance
  • A flat black coating with a gun metal gray shell
  • Increases horsepower and sound quality.

Warning:  California Proposition 65

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