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

DH Motoring

Sale price $300.00 Regular price $335.00

Shipping calculated at checkout.

Customer Reviews

Based on 19 reviews
89%
(17)
5%
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J
J.L.
Amazing upgrade
J
J.M.
Great fun
T
T.D.
M
M.N.
Will do business again
J
J.M.
Feels like a real bike, now!

The DH Motoring Stage 3 Package includes the following:


DHM ECU Flash
DHM High Compression Stock Bore Piston
TB Parts Camshaft
NGK CR9E Spark plug with spacer

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.

 

Install video: