Nizpro Marine F350 5.3L V8 400 ECO PLUS REPOWER KIT 2010 To 2019

Why purchase a Nizpro Marine 400 ECO Plus Performance Repower?

It's all about optimising performance.

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 the Nizpro Marine 400 ECO PLUS Performance Repower, your Yamaha V8 350hp OFFSHORE will make 400hp with a 6,600rpm rev limiter and have extra torque where you need it, all  running on minimum 87 MON US Octane/91 RON AUS Octane fuel!

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

Testing: We have rigorously tested the Nizpro Marine V8 400 ECO PLUS 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 400 ECO PLUS Performance Repower & are undertaken to ensure complete confidence in the Nizpro Marine 425HO Performance Repower.

*Performance Caveat :

Engine must run on Minimum 87 MON USA grade Octane / 95-98 AUS grade Octane fuel & have adhered to recommended Yamaha service intervals. 

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