The DH Motoring Stage 3 Package includes the following:
DHM ECU Flash
DHM High Compression Stock Bore Piston
TB Camshaft
NGK CR9E Spark plug with spacer
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 ($95 extra), or you can send yours in to be flashed.
An oil cooler and extra crankcase vents are recommended for this kit.
Super happy with the DHM stage 3 kit for my 2019 monkey. Huge improvement in power and torque. Runs amazing with 100 octane
D
Dwight Kovich
Great product
Wasn’t to bad to install took me about a day to throw everything together and it feels like a complete different bike. I absolutely love this kit and hope to treats me well down the road.
K
Kane Statham
Easy and well supported
The kit went in easily.
Even the ring gaps were right out of the box.
I had a few questions and they were answered kindly even though they were pretty basic.
M
Michael
Awesome
Easy install. Allot faster
J
Jacob Villoch
Stage 3 kit
Everything about this company is amazing. They reply to emails so fast to any questions. Very fast shipping. If you follow instructions the stage 3 kit is easy and good upgrade.