Honda Grom Stage 3 | DHM Piston, ECU Reflash, and TB Camshaft

DH Motoring

Regular price $299.00

Shipping calculated at checkout.

Customer Reviews

Based on 2 reviews
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J
J.M.
Stage 3 kit fun

Couple weeks ago I got the stage 3 kit, of the high comp piston with matched cylinder and the cam with the ecu reflash. I love it! I can notice an increase in the power and with the new cam I have much better top end. Top notch job on this kit you have created so far. Now my grom is almost built how it should have been from factory. Keep up the good work dave

J
J.H.
#RUNDHM

Awesome guy awesome parts 10 stars brotha. Your gonna kill the game with this kit If your running a finbro/power commander your better off selling it and running this kit. 186 bbk wont touch it bottom end nor top. I've put over 800 miles stunting. Bike will do 78mph with a 14t front sprocket. 🤟🤟💪💪💯💯💯

***Orders are now shipping in 5-7 days from order date! 

The DH Motoring Stage 3 Package includes the following:

DHM ECU Flash
DHM High Compression Stock Bore Piston
TB Parts Camshaft

Honda Monkey Stage 3 kit is available HERE

Combined with your aftermarket intake and exhaust, this is the most you can get out of your Grom 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!

You can choose to receive a preflashed ECU instead of sending yours in. You can also choose to receive a new cylinder matched to the piston if yours is worn. 

This product page is for customers that do not currently have a DHM flash or cam package. If you already own our reflash or cam package, you can purchase the Stage 3 Upgrade HERE.