Sent ECU. Followed instructions and got it back right away. Bike runs mint.
LOVE THE FLASH. I ONLY HAVE A COUPLE MILES ON IT DUE TO COLD WEATHER. I COULD FEEL A DIFFERENCE IN POWER RIGHT AWAY. I WOULD RECOMMEND DHM ECU FLASH 100% WORTH THE MONEY. THANKS DHM YOU GUYS ARE GREAT!
NO PC OR FUEL CONTROLLER NEEDED! YOUR FLASHES ROCK! KEEP IT GOING! GOT ONE HAPPY TEXAN!!!!
Wow what a chsnge in bike right off the bat I could tell by throttle response . I also had a few questions about it all and guys at DHMOTORING answer them all for me quickly by far best bang for buck I recommend them 100%
Wonderful service and turn-around. The bike feels like a new mini-beast with a lot more punch and a wider band, not to mention the added RPMs.
He was even kind enough to answer a really dumb question (where is my ECU) when I was having issues locating the info online.
Can't wait to upgrade the cam and continue with the reflashing service as I mod it up.
David is awesome and I definitely be doing more business with him.
**An option for bikes with the DCR or TB cam has now been added.
**SF Core ECUs are in stock and shipping!
**OG & Monkey ECUs are backordered, and will ship in roughly a week from order date. You can still send yours in to be flashed.
**Mail-in ECU turnaround time is only 1-2 business days!
DHM is here to offer you the original flash tuning solution for the Honda Grom / Monkey! Our stage 1 software cleans up the air/fuel ratio and optimizes ignition timing on bikes with intake and exhaust modifications.
Looking at the dyno graph, you'll see the blue and green lines that are the graphs for the stock, unmodified ECU. It runs extremely lean up top and therefore only makes around 6-7HP at 9200rpm. By controlling the air/fuel ratio we're able to extract up to 3HP more in the higher RPMs. The peak number is only about 1hp but in a race on the street the tuned bike will continue to pull gear after gear because it does not lose power after 7,000rpm.
Our ECU flash not only increases horsepower, but it also makes the engine run safer now that it has adequate fueling.
***This is the best alternative to a fuel controller, especially at the price point. You no longer need to spend hundreds of dollars on a tuner if you only have simple bolt-ons on your bike. If your bike is running a modified intake and exhaust this is your ticket to a smooth running bike with OEM like ride-ability. Since we retain the stock ECU, the bike will start, run and idle like normal, but will produce more and safer power throughout the rev range.
- Up to a 3HP gain compared to an untuned ECU!
- Raised rev limit of 9750rpm (compared to 9250rpm stock) higher limits available upon request
- Corrected air/fuel ratio
- Additonal ignition timing advance for improved throttle response and power
- Higher top speed
- Better mid range and torque
- Optional tip-sensor delete
- Optional cold-start high idle delete
- Optional closed loop delete (will allow your piggyback to make changes to the closed loop portion of the map)
Once you've completed checkout, you will receive the shipping info as well as a link to a form so you can list your exact modifications.
How to order:
You can mail us your ECU and we will flash it and get it back in the mail by the following business day (1-2 day turnaround time).
If you do not wish to have the downtime, we can provide a core flashed ECU to you. You will have to pay a core charge ($95 for SF and Monkey, $110 for OG) which will include a preflashed ecu. You can choose to return your stock ecu for a $75 core refund after you've received the new one.
If we revise the stage 1 software in the future we will update your ECU for free (you just pay shipping both ways). If you'd like to update to a different setup later on (big bore, cam, etc) we only charge a $35 upgrade fee which includes return shipping to you as well.