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 300hp OFFSHORE will make 425hp with a Nizpro Performance 6,600rpm Rev limiter and extra torque 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 V8 425HO Performance Repower on a standard Yamaha V8 300hp 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 theย 425HO Performance Repower to ensure complete confidence in the Nizpro Marine 425HO Performance Repower.
*Performance Caveat:
Engine must use Minimum 89 US gas / 95 RON AUSย fuel & must have adhered to recommended Yamaha service intervals.ย
Additional Tunes available from $1250USD
Please note that all NIZPRO ECU Flashing Software is ONLY compatible with Windows Computers.
