***Update 6-3-24, The Decha HR camshaft has been added as an option. It provides the same gains as a TB or DCR R2 but with a different lobe design that is not as noisy due to a larger base circle diameter.
****DOES NOT FIT THE 2022+ HONDA GROM/MONKEY, for the 2022-2024 model, click HERE
If your Grom already has an intake and exhaust, this is the next step!
We've created a camshaft package that allows you to add a Decha HR or TB Parts camshaft and our DHM Reflash to your bike. This will add as much as 2-3hp and will also increase your rev limit to 10,000 rpm, while also correcting the fuel and timing tables in your ecu. Your Grom will experience much stronger high RPM power, 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!
Benefits: Corrected Air/Fuel ratio for your exact modifications Increased ignition timing for throttle response and HP 13+ HP depending on your intake and exhaust setup 10,000rpm rev limiter Normal cold start functions (no bad idle issues when cold)
***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.
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.
DHM received my ECU, flashed it, packaged it with the cam, and dropped it off at the UPS store the same day. I hope my stage 2 Grom will be as fast as they are.
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David Burrows
Wow
Seriously impressive upgrade for the Grom but without going big bore or oil cooler etc. Don't think on it too hard, just buy it and thank me later. Pulls hard now from about 5500rpm. Incredible
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Anthony Messina
Good upgrade
Gets my 270 lb self to 60 mph on flat surface, id drop a tooth on the front sprocket as well
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Matt
Perfect product
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Larry Young
First time customer
I was very happy with the purchase and service I received from dhm. plus my grom runs very good after my intake cam and ecu flash.