CNC porting service for 1999-2015 Hayabusa and B-King utalizes advanced port designs 



CNC porting service (for standard and +1mm over) Includes:

  • Disassembly and inspection

  • Beadblast/ Hot tank cleaning

  • Press valve guides down for high lift cams

  • Weld air injection holes closed (Gen 1 only)

  • CNC porting

  • Competition valve job (as necessary)

  • New premuim viton valve guide seals

  • Performance, high lift valve springs

  • Assembly

Standard valve porting service $995.00

 Available options:

  • Titanium spring retainers
  • 1mm oversize valves
  • Bronze valve guides
  • Combustion chamber machining
  • Resurfacing
  • Special combustion chamber machining for nitrous


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