F350 5.3L V8
425HO REPOWER KIT
2010 to 2019

USD $2,299.00USD $4,799.00

Why purchase a Nizpro Marine Performance Repower?

It's all about optimising performance.

The Nizpro Marine Performance Repower is both a cost and time effective way of turning your engines into 425hp monsters: improving hole shot, speed and fuel economy with up to a 9.86% average fuel saving across the entire throttle range.  

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

Use the DIY Repower Kit to easily flash your ECU! Upgrading to a Nizpro Marine Performance Repower, your Yamaha V8 350hp OFFSHORE will make 425hp with a 6,600rpm rev limiter and have extra torque where you need it.

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

Testing: We have rigorously tested the Nizpro Marine V8 425HO Performance Repower on a standard Yamaha V8 350hp OFFSHORE engine utilizing the Nizpro Marine Endurance Test on our inhouse dyno cell. The engine passed with no adverse effects*.

That same engine has also been extensively water tested for 250+ hours to further validate the dyno results. These tests underpin the performance of the hundreds of engines currently in market using the Nizpro Marine 425HO Performance Repower & are undertaken to ensure complete confidence in the Nizpro Marine 425HO Performance Repower.

*Performance Caveat: Engine must run on Minimum 89–90 USA grade / 95-98 AUS grade Octane fuel & have adhered to recommended Yamaha service intervals. 

Additional Tunes available from $1250USD

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

Suitable for Yamaha V8 OFFSHORE F350         2010 to 2019

STOCK YAMAHA V8 F350 OFFSHORE VS NIZPRO 425HO Performance Repower
• Power increase to 425 hp
20% Torque increase up to 405Ftlbs
• Nizpro Performance 6600rpm Rev Limiter
• Improved fuel economy – saving up to an avarage of 9.8% 

 

DIY Kit includes

  • ECU Flash Interface & USB Cable
  • OFFSHORE Flash Harness
  • 12V  Power Cable
  • AC Power supply
  • 2 x Nizpro 425HO Decals
  • 1 x Nizpro 425HO Performance Repower
  • Exclusive Nizpro Cap
  • Nizpro USB preloaded with Instructions