ECU Flash Service - Yamaha Grizzly 700 ECU (CDI) 2025-2026 UPOMIAH48408 we've been able to play

we've been able to play around with different fuel controllers and intakes to see if we could further unleash the machine and improve performance

reliable package for 10+ horsepower gains

The 300R in stock form comes out of the gate with a good 3-4 more peak and more down low

(Note: This does not come with a new ECU

Key Benefits:

ECU Flash Service - Yamaha Grizzly 700 ECU (CDI) 2025-2026 UPOMIAH48408 we've been able to playBarkers Exhaust ECU Flash Service 20252026 Yamaha Grizzly 700 This service re flashes your stock OEM ECU CDI with a custom calibration developed specifically for Barkers Exhaust systems on the 20252026 Yamaha Grizzly 700. From the factory, these newer Grizzly 700 models are extremely sensitive to fuel and airflow changes. When a performance exhaust is installed, the stock ECU often triggers a check engine light. Our ECU flash corrects this behavior