The DH Motoring Stage 3 Package includes the following:
DHM ECU Flash
DHM High Compression Stock Bore Piston
TB Camshaft or Decha HR Camshaft
NGK CR9E Spark plug with spacer
ECU Flash Options:
Mail your ECU in and we'll flash it and send it back with the kit
Purchase a new pre-flashed ECU that will be shipped with the kit
Purchase the DHM Flashing Suite Cable that allows you to flash your ECU at home using your Windows PC / laptop.
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!
An oil cooler and extra crankcase vents are recommended for this kit.
An absolute must have for any mini moto rider that was to squeeze more safe power out of the 125cc grom motor!! I can honestly say my grom is a whole different beast!! When they say is keeps pulling and pulling all the way to red line they are NOT joking !! Another great great bundle from DHM !!
G
Greg
The way it should be from factory
This is hands down a requirement for the Grom. I paired this with a new cylinder, ported head, light oil spinner and 5 speed, and it's like a new bike. No longer do I struggle going up hills. The bike absolutely rips and pulls hard to the redline.
J
Justin Rylance
Stage 3
Significant gain in power.. easy to install and most importantly absolutley stellar customer service! Best bang for the buck, would highly reccomend!
D
Dakota Mullins
I recommend the stage 3 kit
I’ve only rd it for about 45mins, but seems to be made good, feels lil sluggish down low on rpm, but up in the upper it comes on with it, I also bought the dhm cylinder with oil ports, they done gaped rings for me for there cylinder
C
CrAzy Carl
Best bang for your buck
SHORT AND SIMPLE
You simply can't beat the performance of this kit when wanting a reliable set up that doesn't break your bank account. Its an easy 10/10 recommend from me 🤝
