Exhaust Port Torque Cones For Harley Davidson



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Exhaust port torque cones for Harley Davidson

Here’s why to use torque cones. Exiting exhaust gasses are sometimes pulled back into the engine by the descending piston before exhaust the valve closes. Exhaust gases in the cylinder contaminate the mixture of fuel and clean air and significantly reduce engine performance. Torque cones are used to prevent this from happening. Torque cones will speed up the exiting exhaust gasses to create a venturi effect which stops them from being sucked back into the engine.

  • Helps to reduce exhaust reversion
  • Simple installation requiring no permanent modification
  • Great for use with unbafFled exhaust that requires some back-pressure
  • CNC machined with precise angles for maximum effect
  • Fits Harley Davidson Evolution, Twin Cam and M8 engines from 1984-Up and Shovelhead engines from 1966-1984
  • Sold in pairs

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Evolution/Twin Cam/M8 84-UP, Shovelhead 66-84


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