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DHM Stage 2 Flash and S1 Cam Package (2022+ Grom / Monkey)

$329.00
by DH Motoring
ECU Core

 

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. 


Cam Installation:


Customer Reviews

Based on 93 reviews
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Sam Mitchell

Easy install and seems to have more power haven’t had time to ride much yet

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Chris poarch

DHM Stage 2 Flash and S1 Cam Package (2022+ Grom / Monkey)

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James L.
Good Product

The cam + tune gives a modest but noticeable performance increase. It definitely helps up hills since you can leave it in a lower gear and rev higher, but top speed doesn’t seem to be too much different.

David offered a ton of help during the install. I had trouble reinstalling the cam sprocket due the tensioner settling too tightly. The solution in my case was to pull the cam chain with constant pressure for a while, and the tensioner eventually eased up. This isn’t covered in install videos, and I think it has to do with how long the cam sprocket is left off.

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Jesse F
Best upgrade!

After speaking with David for only 5 minutes, I knew what I needed, super helpful! Purchased the stage 1 cam, Decha stealth pipe and flashed ECU. Goal was to keep the 24’ Monkey looking and sounding stock. I live in Canada and the items arrived within 2 days. A little tip I found online, when adjusting the valves to .005, use a .006 after to make sure the gap is right (.006 shouldn’t have clearance). 24’ ECU location is under the seat, under the battery (little rubber square), remove the two securing screws, metal clips from the rubber square sleeve, then remove sleeve. A plastic grey clip slides from the ECU to unlock it. Biggest takeaway from this upgrade is how much harder the bike pulls. Top speed is “slightly” improved and the loss of power on inclines is much reduced. Best bang for your buck upgrade, especially if you’re skipping an exhaust and BBK. Thanks DHM!

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David Archer
noticeable power increase

First ride after S1 cam, ECU flash and new spark plug install the power increase was noticeable. Full Tyga exhaust and Chimera intake and +1 tooth front sprocket

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