DHM Stage 3 Kit

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  • Regular price $275.00

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Fits all years Grom and Monkey

The DH Motoring Stage 3 Package includes the following:

  • DHM 13.4:1 High Compression Piston
  • DHM Stage 3 ECU Flash
  • TB Parts Camshaft
  • NGK CR9E Spark Plug
  • Spark Plug Spacer

Combined with your aftermarket intake and exhaust, this is the most you can get out of your Grom / Monkey without doing any head work. After dyno testing we were repeatedly seeing 13.5hp at the wheels (SAE) run after run! The Stage 3 package makes more power than a stock Grom at every RPM and double the horsepower at 9000+ rpm! 91 octane fuel is absolutely required. Any fuel with a lower octane rating may result in engine damage!

*Requires ECU to be mailed in for flashing services