If your 2022-2025 Grom/Monkey already has an intake and exhaust, this is the next step!
We've created a camshaft package that allows you to add our S1 camshaft and our DHM Reflash to your bike. This will add as much as 2-3hp and increase your rev limit to 10,000 rpm, while also correcting the fuel and timing tables in your ecu. Your Grom will experience increased power across the entire rev range, as well as the ability to pull to higher RPM before shifting. After tons of dyno and street testing, we feel this it the best bang for buck upgrade available!
Features:
Corrected Air/Fuel ratio for your exact modifications
Increased ignition timing for throttle response and HP
Modified injection timing for ride ability and response
13+ HP depending on your intake and exhaust setup
10,000rpm rev limiter
Normal cold start functions (no bad idle issues when cold)
Included:
DHM S1 Camshaft
DHM Reflash for the S1 camshaft and other modifications
***Each tune is catered to your exact modifications (intake, exhaust and cam brands, etc.) After checkout you will receive a link to an online form that will ask for your bike's exact setup so we can tune it accordingly.
You have two purchase options for delivery. Once you've completed the purchase, we will email you with instructions on sending your ECU in to be reflashed. You can also choose to purchase a core ecu, we will send you a flashed ecu and you can return your original one and receive a $75 credit or keep it as a back up.
This was a great package getting the cam and ECU tune together!!! Not hard to install, maybe a little tricky to get that cam wheel back in time but just takes some patience. Super fast shipping!!! These guys are awesome at answering questions to. Solid company I highly recommend. Top speed didn’t really increase but low end torque and grunt is amazing 4th gear pulls hard into 5th then dies off but well worth every penny!!
J
Jeremy Mutz
Great upgrade
This makes my 2025 Grom pull hard from 8,000 to 10,000 rpm's in the the first 4 gears. Wish 5th gear pulled instead it still falls flat. Going to try some different gearing next. Would recommend this kit for sure.
T
Tim Crellin
Like a new bike!
The cam & tune wakes up these little bikes, worth every cent
A
Adrian Harp
Definitely an upgrade but...
I bought this stage 2 for my stock 2025 grom and I can say it's definitely put much more joy into riding the grom. The only reason it's not a 5 star is because they over charged me for the kit. I originally bought the stage 3 but then I changed my mind a day later and had them update my order to the stage 2 ( this was before they even shipped anything out.) So I originally paid $554 USD for the stage 3 and after I updated my order I only got $121 back. I have no complaints about the product but definitely wish they wouldn't be so money hungry after a customer updates their order to something less expensive.
j
joel tirado
dhm stage 2 cam and ecu
bike setup - hindle full low mount exhaust, decha intake with tst airbox lid, dhm stage 2 cam / ecu flash with 15 35 gearing. its a whole other bike now took it to the track and ran an 18.36 @67mph crossed the traps @the top of 4th gear in the 1/4 mile I'm loving it! thankyou dhm you woke this thing up now the drag racing pit bike project begins 😁
