F350 4.3L V6 376 ECO
SINGLE ENGINE DIY KIT
2024 to Current

USD $1,799.00

Go further, faster, with Nizpro, all day, every day...

Optimize Speed. Maximize Power. Extend Your Range. Achieve Peak Efficiency.

Unleash the potential of your Yamaha F350 OFFSHORE 4.3L with the Nizpro Marine 376 ECO Repower.

Designed specifically to use 87 AKI US gas or 91 RON AUS fuel, this repower will significantly reduce running costs with incredible fuel savings!

This cutting edge upgrade delivers a horsepower boost while reducing fuel consumption giving you the performance you demand and the extended range you need for longer adventures offshore.

Purpose-built for the Yamaha F350 OFFSHORE 4.3L, the Nizpro Marine 376 ECO Repower is the cost-effective enhancement that will transform your engine’s capabilities.

Whether you're cruising open waters or pushing through challenging conditions, this upgrade delivers the perfect balance of power, fuel efficiency, extended range, and reliability.

A Nizpro Repower is about optimising the performance of your engine.

Use the Nizpro Marine 376 ECO DIY Kit to easily flash your ECU!

Upgrading to a Nizpro Marine 376 ECO Repower, your Yamaha F350 4.3L V6 OFFSHORE will make 376hp, includes the exclusive Nizpro Soft rev limiter but also have additional torque on hand when you need it most.

Increased Power, Improved Economy & Reliability? It’s all true!

Testing:

We have rigorously tested the Nizpro Marine 376 FSR Repower on a standard Yamaha F350 4.3L V6 OFFSHORE engine utilizing the Nizpro Marine Endurance Test on our inhouse dyno cell. The engine passed with no adverse effects*.

The same engine was extensively water tested for 200+ hours to further validate the dyno results. These tests underpin the performance of the thousands of engines currently in market using Nizpro Marine Repowers & are undertaken to ensure complete confidence in our performance enhancements.

*Performance Caveat:

Engine must use Minimum 87 AKI US gas /91 RON AUS Octane fuel & must have adhered to recommended Yamaha service intervals. 

 

 

 

Please note that all NIZPRO ECU Flashing Software is ONLY compatible with Windows Computers.

Suitable for Yamaha OFFSHORE F350 4.3L V6        2024  to Current

 

*Performance Caveat:

Engine must use Minimum 87 AKI US gas /91 RON AUS Octane fuel & must have adhered to recommended Yamaha service intervals. 

 

 

 

 

 

 

 

STOCK YAMAHA F350 4.3L V6 OFFSHORE VS NIZPRO 376 ECO Repower

• Power increase to 376 hp – Up 6.95% over stock
• Torque increase to 359 FtlbsUp 5.5%overstock
• Exclusive Nizpro Soft Rev limiter set at 6.3200rpm
• Improved fuel economy – Up to an average 12-13% saving over Yamaha stock

*Performance Caveat:

Engine must use Minimum 87 AKI US gas /91 RON AUS Octane fuel & must have adhered to recommended Yamaha service intervals. 

DIY Kit includes

  • ECU Flash Interface & USB Cable
  • AC Flash Power Supply – Region Specific
  • 12V DC Power Cable
  • Offshore F350 4.3L V6 Flash Harness
  • 2 x Nizpro Enhanced Decals per engine
  • 1 x Nizpro 376 ECO Licence per engine
  • Nizpro Cap
  • Nizpro USB preloaded with Instructions

NIZPRO – Yamaha 4.3L V6 F350 OFFSHORE ECU Flashing Instructions

*Performance Caveat:

Engine must use Minimum 87 AKI US gas /91 RON AUS Octane fuel & must have adhered to recommended Yamaha service intervals. 

 

 

 

 

 

 

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