These tests underpin the performance of the hundreds of engines currently in market using the Nizpro Marine 332HO Performance Repower & are undertaken to ensure complete confidence in the Nizpro Marine 332HO Performance Repower. The same engine has also been extensively water tested for 250+ hours to further validate the dyno results. The engine passed with no adverse effects*. Testing: We have rigorously tested the Nizpro Marine 332HO Performance repower on a standard Yamaha 225hp SHO engine utilizing the Nizpro Marine Endurance Test on our inhouse dyno cell.

Increased Power, Improved Economy & Reliability? It’s all true! Use the DIY Repower Kit to easily flash your ECU! Upgrading to a Nizpro Marine Performance Repower, your Yamaha 225hp SHO will make 332hp with extra torque through the rev range to get your boat up and out of the water faster. It’s not about turning your boat into a rocket ship – that’s what we made Nizpro 450s Superchargers for! Please note that all NIZPRO ECU Flashing Software is ONLY compatible with Windows Computers.A Nizpro Marine Performance Repower is about optimising the performance of your engine.

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

Testing: We have rigorously tested the Nizpro Marine 332HO Performance Repowers on a standard Yamaha 250hp OFFSHORE engine utilizing the Nizpro Marine Endurance Test on our inhouse dyno cell. Use the DIY Repower Kit to easily flash your ECU! Upgrading to a Nizpro Marine Performance Repower, your Yamaha 250hp OFFSHORE will make 332hp and rev to 6,500rpm with extra torque to get your boat up and out of the water faster. A Nizpro Marine Performance Repower is about optimising the performance of your engine.

Yamaha sho ecu flash