GTThunder/BNR Race Piston

This is the GTTHUNDER/BNR Race piston. This piston is used by more Yamaha ATV GNCC Pros than any other piston on the market currently ran by 4 of 5 Yamaha GNCC Pros. This piston is 13:1 compression utilizing stock piston rings for the best wear.

  • Utilizes OEM Yamaha Rings
  • Includes Rings,Wrist Pin Clips and Piston
  • Runs much cooler than other race pistons on market
  • Large Horsepower increase for reasonable cost

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