NIZPRO Yamaha F350 V6 4.3L (ECO or High Output) ECU Calibration - Mail-In

Ship your ECU to us at 3232 26th Ave E UNIT D, Bradenton, FL 34208 for our professional flashing, and we'll return it via mail. We suggest $3000 insurance when you mail it. we ship back for free with insurance worry free.

Yamaha F350 OFFSHORE 4.3L, year 2024-current NIZPRO 382 HP Tune 

This is the tune you want if you want all the power, you can get out of your 350 4.3L, All while retaining better fuel on average 15-20% better fuel eco all while retaining your factory rev limmiter. but you are required to run 89 Octane fuel and above and yes

Yamaha F350 OFFSHORE 4.3L, years 20024-current NIZPRO 376 ECO Tune

The 350 376 eco tune is a great way to add a little bit of power but at the same time getting almost always 25% fuel economy best part you can run 87 octane Fuel and above fuel

Please note that installing a Nizpro tune WILL NOT correct any existing faults with your engine. we recommend just using 89 octane fuel, but it isn't a requirement for all tunes