(After checkout you'll receive an email confirmation with shipping instructions. 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). Each tune is tailored to your exact modifications! ***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. Stage 3: High Compression Piston, Intake, Exhaust and Cam.Optional closed loop delete (will allow your piggyback to make changes to the closed loop portion of the map).Revised fuel injection timing for better atomization.Additional ignition timing advance for improved throttle response and power.Raised rev limit of 10,000rpm (compared to 9250rpm stock) higher limits available upon request.Up to a 3HP gain at high rpm compared to an untuned ECU!.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. If your bike is running a modified intake and exhaust this is your ticket to a smooth running bike with OEM like ride-ability. You no longer need to spend hundreds of dollars on a tuner if you only have simple bolt-ons on your bike. ***This is the best alternative to a fuel controller, especially at the price point. Our ECU flash not only increases horsepower, but it also makes the engine run safer now that it has adequate fueling. 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. By controlling the air/fuel ratio we're able to extract up to 3HP more in the higher RPMs. It runs extremely lean up top and therefore only makes around 6-7HP at 9200rpm.
Looking at the dyno graph, you'll see the blue and green lines that are the graphs for the stock, unmodified ECU.
**Any OG ECUs that are in stock are used cores, available for purchaseĭHM 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. **Mail-in ECU turnaround time is only 1-2 business days!