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

Use the DIY Repower Kit to easily flash your ECUs! Upgrading to a Nizpro Marine Performance Repower, your Yamaha V8 350hp OFFSHORE engines will make 400hp with a Yamaha stock 6,200rpm rev limiter whilst running on US 87 MON / 91 AUS RON.

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

Testing: We have rigorously tested the Nizpro Marine V8 400 ECO Plus 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 numerous customer engines currently in market using the Nizpro Marine 400 Eco Plus Repower & are undertaken to ensure complete confidence in the Nizpro Marine 400 ECO Plus 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 $1,250USD

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

STOCK YAMAHA V8 F350 OFFSHORE VS NIZPRO 400 ECO Plus Repower
• Power increase to 400hp
• 20% Torque increase up to 405Ftlbs
• RPM limiter set at Yamaha stock 6,200rpm
• Improved fuel economy by 9.86% average running on US87 MON / 95-98 AUS RON

DIY Kit includes

• ECU Flash Interface & USB Cable
• OFFSHORE Flash Harness
• 12V Power Cable
• AC Power Supply
• 6 x Nizpro 400 ECO Plus Decals
• 3 x Nizpro 400 ECO Plus Repowers
• Exclusive Nizpro Cap
• Nizpro USB preloaded with Instructions

Suitable for Yamaha V8 OFFSHORE F350         2010 to 2019