DHM ECU Reflash for Honda Grom & Monkey (2020-2024)

**Mail-in ECU turnaround time is only 1-2 business days!**Any OG ECUs that are in stock are used cores, available for purchase 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