Yamaha F225 Offshore 4.2L Nizpro 332HO ECU Tune (A Series 2014–2021)

Unlock stronger real-world performance from your Yamaha 4.2L Offshore engine with the Nizpro 332HO calibration, designed to dramatically increase horsepower, improve throttle response, and deliver stronger performance across the entire RPM range.

This calibration is ideal for offshore boats and heavy-load applications where additional power and torque are critical. The biggest gains are felt during acceleration, mid-range load, and sustained cruising.

Performance Data
Stock Output: 250 HP
Tuned Output: 332 HP
Power Increase: +82 HP (+32.8%)

Fuel Savings: Up to 10–15% improved efficiency
Minimum Fuel Required: 89 Octane

What this tune improves

The Nizpro 332HO calibration delivers a stronger and more capable powerband.

Real-world improvements include:

Faster acceleration and improved hole shot
Stronger mid-range torque under load
Sharper throttle response
Improved performance in offshore conditions
Higher sustained cruising performance

This results in a more powerful and responsive engine for demanding use.

Compatible Engines

F225 - 2014 to 2021

ECU Compatibility

6CL Series, 6HB Series

How to order

• Select your Service Type
• Select your ECU Part Number (Abridged)
• Complete checkout
• Mail in your ECU or schedule local mobile service if eligible

Service Options

Mail-In ECU Service
Nationwide service available.

Local Mobile Flash Service (Florida)
Available for qualifying local appointments within 40 miles of Ormond Beach, FL.

Important before ordering

If you do not see your ECU listed, select Not Listed / Unsure. We will verify compatibility before flashing.

Notes
Performance results can vary based on hull, prop, load, fuel quality, and operating conditions.