A Nizpro Performance Repower is about optimising engine performance.

It’s not about turning your boat into a rocket ship – that’s what we made Nizpro 450s Superchargers for!

Use the DIY Kit to easily flash your ECU! Upgrading to a Nizpro Marine Performance Repower, your Yamaha F225 XB Offshore will make 332hp with extra torque through the rev range to get your boat up and out of the water faster.

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

Testing: We have rigorously tested the Nizpro Marine 332HO Performance Repower on a standard Yamaha F225 XB Offshore utilizing the Nizpro Marine Endurance Test on our inhouse dyno cell. The engine passed with no adverse effects*.

The same engine has also been extensively water tested for 250+ hours to further validate the dyno results. These tests underpin the performance of the thousands of engines currently in market using the Nizpro Marine 332HO 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. 

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

STOCK YAMAHA MECH F225 XB OFFSHORE VS NIZPRO 332HO PERFORMANCE REPOWER
• Power increase to 332 hp, up 10%
• 10.5% Torque increase to 337.8Ftlbs
• Nizpro 6500 rpm Performance Rev Limiter
• Improved fuel economy – up to an average 14.6%

DIY Kit includes

• ECU Flash Interface & USB Cable
• YBH-14 Flash Harness
• 12v Power Cable
• AC Power supply
• 2 x 332HO Nizpro Decals
• 1 x 332HO Performance Repower
• Nizpro Trucker Cap
• Nizpro USB preloaded with Instructions

Suitable for

• Yamaha F225 XB                    2016  to Current
• Yamaha LF225 XB                 2016 to Current
• Yamaha F225 XB2                  2021 to Current
• Yamaha LF225 XB2               2021 to Current

NIZPRO – Yamaha 4.2L V6 OFFSHORE ECU Flashing Instructions