The SHO Sleeper Upgrade – Hidden Power Awakened
With the Nizpro performance tune, your Yamaha SHO midrange outboard quietly transforms into a powerhouse:
90hp SHO jumps to 123hp
115hp SHO surges to 152hp
This sleeper upgrade delivers a huge boost in low-end and mid-range torque, getting you on plane faster and pulling stronger through the RPM range. Depending on your setup, you can also expect a 2–5 mph increase in top speed.
⚠️ Important: To ensure maximum results and long-term reliability, run your engine on 89–90 USA / 95–98 AUS octane fuel and follow Yamaha’s recommended service intervals. Failure to do so may 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".
The SHO Sleeper Upgrade – Hidden Power Awakened
With the Nizpro performance tune, your Yamaha SHO midrange outboard quietly transforms into a powerhouse:
90hp SHO jumps to 123hp
115hp SHO surges to 152hp
This sleeper upgrade delivers a huge boost in low-end and mid-range torque, getting you on plane faster and pulling stronger through the RPM range. Depending on your setup, you can also expect a 2–5 mph increase in top speed.
⚠️ Important: To ensure maximum results and long-term reliability, run your engine on 89–90 USA / 95–98 AUS octane fuel and follow Yamaha’s recommended service intervals. Failure to do so may 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".
