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Exhaust-911 Carrera-Werks911 Pre-Muffler Catbypass Pipe

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Werks911 Cat By-Pass Features-

  • Porsche 911, 911SC 3.0 L, and Carrera 3.2 Models from 1974-89. Models 1974-79 use bolt in O2 sensor bung to close off O2 bung for early models.
  • bolt-on for driver's schools and race events. Off road use only!
  • Increased horsepower, torque and sound. About 10 HP more and better throttle response.
  • Manufactured out of T304 Stainless steel and polished for excellent look.
  • Design is bulged in the center to mimic the look of a catalytic converter to pass visual inspection (will not pass smog test)
  • Includes O2 sensor bung so your fuel injection system continues to operate correctly and can continue to adjust mixture for maximum performance