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The Vibrant 27191 4″ Silicone Coupler features a 4-Ply Silicone construction with a 4″ I.D. and 12″ overall length. The Vibrant coupler features a 1-year limited warranty. They are perfect for replacing old worn boots, or building your own custom turbocharger setup or intake system.


  • 4″ Inlet/Outlet
  • 12″ Overall Length
  • 0.18 Wall Thickness
  • Burst Strength: 40 PSI
  • Multiple Colors Available

Black – 27191
Red – 27191R
Blue -27191B


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