Offshore V6 4.2L NIZPRO TUNE (225, 250, 300 HP) (2010-Current)

$949.00

The Outboard V6 – Unlocked

At JC Maritime Services, we’re proud to offer Nizpro’s premium performance tuning for Yamaha Offshore V6 outboards. With this upgrade, your 225, 250, or 300 horsepower engine transforms into a 332 horsepower powerhouse—unlocking the performance Yamaha built into these engines but never released.

Even better, it’s not just about speed. Many owners see fuel economy gains of up to 15%, depending on boat setup and conditions—meaning more time on the water and fewer trips to the fuel dock.

⚠️ Important: For maximum results and engine protection, your outboard must run on 89–90 USA / 95–98 AUS octane fuel and follow Yamaha’s recommended service intervals. Neglecting these requirements can reduce performance and risk engine damage.

If your ECU ID is not in this list please locate the "Prog. ID" or "Ver. ID" on the ECU and re-check.

If it is still not in the list after that, please select "Contact Support"

HP:
ECU:

The Outboard V6 – Unlocked

At JC Maritime Services, we’re proud to offer Nizpro’s premium performance tuning for Yamaha Offshore V6 outboards. With this upgrade, your 225, 250, or 300 horsepower engine transforms into a 332 horsepower powerhouse—unlocking the performance Yamaha built into these engines but never released.

Even better, it’s not just about speed. Many owners see fuel economy gains of up to 15%, depending on boat setup and conditions—meaning more time on the water and fewer trips to the fuel dock.

⚠️ Important: For maximum results and engine protection, your outboard must run on 89–90 USA / 95–98 AUS octane fuel and follow Yamaha’s recommended service intervals. Neglecting these requirements can reduce performance and risk engine damage.

If your ECU ID is not in this list please locate the "Prog. ID" or "Ver. ID" on the ECU and re-check.

If it is still not in the list after that, please select "Contact Support"