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About Two Brothers Racing S1-R Black Series Slip-Ons

Two Brothers Racing S1-R Black Series Slip-Ons

  • Aluminum or Carbon Fiber
  • Aerospace High-Temp Carbon Fiber
  • Teflon Coated Magnesium End-Cap
  • Stamped Spring-Fit Inlet
  • Aluminum CNC Machined outlet
  • Rubber-Lined Styled Mount
  • Spiral-Wound Perforated Core.

Warning:  California Proposition 65

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