Yamaha F300 5.3L V8 Nizpro 400 ECO ECU Tune

Unlock stronger real-world efficiency from your Yamaha F300 5.3L V8 with the Nizpro 400 ECO calibration, designed to significantly reduce fuel consumption while improving drivability and maintaining strong usable performance.

This calibration is ideal for offshore boaters and larger vessels where fuel efficiency, range, and operating cost are critical. The biggest gains are seen during cruising speeds, extended run times, and loaded operation.

Performance Data
Stock Output: 300 HP
Tuned Output: 400 HP
Power Increase: +100 HP (+33.3%)

Fuel Savings: Up to 15–20% less fuel consumption
Minimum Fuel Required: 87 Octane

What this tune improves

The Nizpro 400 ECO calibration is built to deliver a smoother and more efficient powerband than stock.

Real-world improvements include:

Improved cruising fuel economy
Smoother throttle response and power delivery
Stronger mid-range efficiency under load
Reduced fuel consumption on long offshore runs
Improved range per tank

This means the engine operates more efficiently while still delivering stronger usable performance.

Compatible Engines

This product is for Yamaha F300 5.3L V8 applications using the ECU numbers listed below.

F300 5.3L V8 — 2007 to 2011

ECU Compatibility

• 6BJ-00, 6BJ-01

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.